The following map shows the percentages of residents of European countries who were born in Russia (i.e. first-generation immigrants of Russian origin) and is based on a 2013 report by the United Nations.
As you can see, the percentages are mostly distributed according to geographical proximity, with two major exceptions being Moldova and Germany. Note that the figures for Albania, Andorra, Czech Republic, and Greece are based on the number of inhabitants with Russian citizenship, regardless of the country of birth. The number for Bosnia and Herzegovina is based on a computational model, not on statistical data.