According to a 2012 survey held in Russia by Sreda Arena, 66,840,000 people in the country (47.4% of the total population) identify as Christians.
This includes:
41.1%—58,800,000 members of the Russian Orthodox Church;
4.1%—5,900,000 people identifying as Christians without belonging to any church;
1.5%—2,100,000 people believing in Orthodox Christianity without belonging to any Orthodox church or belonging to non-Russian churches;
0.3%—400,000 Old Believers;
0.2%—300,000 Protestants;
0.1%—140,000 members of the Catholic Church;
0.1%—140,000 Pentecostals
Yes, the statistics bears it out.