Russia pays already 1 billion a day for the war.
Not mentioning the economical disaster they will have for many years to come.
Or the cost of replacing all weapons that are destroyed. It will take them years before they will have again what they had 2 months ago.
But they should first find a way to produce all the parts that they imported till now, and some of these parts will not be available anymore (high tech that they are not able to produce themselves).
What does this have to do with us striking a check for tens of billions of dollars?