The main parts that mattered were the european ones. And usually, capturing the enemies capital equals victory and Napoleon did capture Moscow. The russians just decided to keep the fight going, despite the chance that their capital burns down, which it did (allegedly on purpose to drive Napoleon out).

In general, Napoleon did not think the russians would use scorched earth tactics, meaning burning their own land, villages, food to deny the french army any supplies (and the russian peasants did not agree to this, but they were not asked).