The Governor Petr Golovin acquired reputation with his oppression and avarice within a short period. Apart from the customary "yasak", abundant amounts of furs were collected from Yakut people in the personal name of governor. In this course of these activities, the native people were subjected to miscellaneous insults and they were exposed to torture. In return to these actions, Yakut people wanted to attack against the Russian officials that came to collect furs in the year of 1642. However, this attempt of them was suppressed with violence by Golovin. 23 Yakut prisoners (hostage) were hanged, and some of Yakut people were beaten and killed with clubs. Golovin who had a brutal spirit changed the procedure of "yasak" in order to increase the number of furs. Before him, the entire clan had been responsible for any "yasak". This time the general census of Yakut people was carried out and each person was forced to give a definite amount of fur. Therefore, the amount of fur that the Russians collected increased a lot. The following numbers were determined in relation with this issue:9.665 sables were collected in the first years of the governorship of Ivan Golovin that was the Yakut elected-chief in the years of 1633/34; after three years, in other words, in the years of 1644/45, 11.531 sables were collected as "yasak". Golovin sent 102.131 units of sable furs to Russia that were collected from the imposition of "yasak" within four years.
The other valuable furs were not included within this estimation. This figure clearly indicates how Yakut Turks were despoiled in order to fill the treasury of Moscow and to enrich the Russian State. The sable furs that were sent to Istanbul and the Crimea or the palaces of the Western Europe and the furs that were presented as presents and bribes for the statesmen were composed of the furs that were collected or confiscated under the name of "yasak" (tax) by the Russian officials through the threat of annihilation that was imposed on the poor Siberian tribes. Yakut people organised hopeless rebellions in order to get rid of this heavy burden; however, thousands of Yakut people were killed with the bullets of the Russian Kazakhs and the rebellions were suppressed thereof. The other clans that did not give "yasak" to the Russians yet were also forced to undertake this liability.
Between the years of 1636-1648, the Yakut people that lived on the banks of Anabara, Olenek, Yana-İndigirka and Kolma Rivers were imposed to "yasak". The Russian "winter quarters" and "fortresses" (castle) were founded in this region. The celebrities of the natives were taken as "securities" (hostages). Everyone was demanded to deliver specific amount of furs. In the beginning, the Russian invaders moved around the riverbanks and established "fortresses"" and fortified places in these regions. After a while, they penetrated into the regions of "taiga" (forest). The "winter quarters" (patrols) of the Russian Kazakhs were established in these regions of Taiga. Then, the Russian people started to come to this region. Yukagir people that were the neighbours of Yakut people in the east were among those that did not deliver any "yasak" to the Russians.
In the middle of the century XVII, the entire Sibir became a subject country that was submissive to the Moscow Tsardom apart from Kamchatka and Çukça lands. The most significant reason of the capture of an enormous country like Sibir by the Russians with very few forces and little expenses within a short period of 30-40 years- was that the tribes that lived in these regions (Tungusic, Buryat, Yakut, Khirghiz, etc.) did not pose an opponent front against the Russians and that each tribe or even each clan was left all alone to fight against Russia. Most of these tribes had a fairly developed level of culture. These Siberian tribes that had neither seen nor heard of the firearms subdued to the domination of the group of Russian Kazakhs composed of 20-30 people in large groups. Therefore, the Russian invaders could easily invade a region of 4-5 thousand km within 30-40 years.