Slavs
Slavs are an Indo-European ethno-linguistic group who speak the various Slavic languages of the larger Balto-Slavic linguistic group. They are native to Eurasia, stretching from Central, Eastern, and Southeastern Europe all the way north and eastwards to Northeast Europe, Northern Asia (Siberia), the Caucasus, and Central Asia (especially Kazakhstan and Turkmenistan) as well as historically in Western Europe (particularly in East Germany) and Western Asia (including Anatolia). From the early 6th century they spread to inhabit the majority of Central, Eastern and Southeastern Europe. Today, there is a large Slavic diaspora throughout North America, particularly in the United States and Canada as a result of immigration.
Russians in Kazakhstan
Between 1906 and 1912, more than half a million ukraines and russians farms were started in Kazakhstan as part of the reforms of the Russian minister of the interior Petr Stolypin. By 1917 there were close to a million slavs in Kazakhstan, about 30% of the total population. 
Analysis of data on migrants who arrived during the Stolypin agrarian reform (1906-1912) on the territory of Kazakhstan shows that 83.1% of the settlers were from Ukraine, the rest came from the southern regions of Russia (16.8%).