Here is more popular yardterrier that liveng outside on a chain. Thought, there are some crazy people who live in 50 m2 flat with pedigree dog - usually largest cities are teeming with such madmen, but relatively yard dogs - it's a few.

most popular are half or no breed, stray dogs, those are the ones you can meet in any city, town or village

but seriously speaking, these ones, that if you can read Russian

http://www.ru-dog.ru/breed/samye-populya...

Yorkshire Terrier one of the most popular ones right now

German shepherd, spaniels, labrador, dachshund, spitz, pug, pekingese, amstaf, Rottweiler, etc...

"Do most Russian let their dogs live inside? " - since most of people in Russia live in apartments, yes.

Dead ones are apparently.....http://www.google.de/url?sa=t&rct=j&q=&e...

I live in Germany, here are many Russian immigrants most are very wary of dogs of any kind, very few Russians here in Germany own dogs in fact.Among the Russians here i know that do own dogs they certainly allow them inside the home in fact the dogs are treated very well indeed also.