I'm considering including parts of Russia on my next big overseas adventure.
Russian visas are very expensive, at least for me at home in Australia. For a multiple entry business visa like friends recommend it works out over $500
From experience I have learned that it's often, but not always, possible to obtain a visa for some countries, in a third country. The Chinese visas I bought in Laos were much cheaper than I would've had to pay in Australia for example.
But I'm having trouble finding information online about Russian visa prices in Cambodia.
On the site of the Russian embassy in Cambodia, I can only find fees for Cambodians.
(Yes I realize Russia normally only issues visas to residents of the country in which they submit their application. In this case it turns out to be very easy to get a resident status in Cambodia that Russia will recognize for visa purposes.)