Earlier quoted context omitted.
That's the total cost over the decade+ the program was in existence. Divide by 10 and it becomes roughly 10% of Google's revenue. So it wouldn't be insubstantial, but they could fund a similar effort if they really wanted to. Shareholders would have a thing or two to say about that though, which is why Elon Musk is keeping SpaceX private.
Sending 2nd rocket to the moon was much cheaper than the first one, so you can’t just divide by 10.
Yes, if it were possible to go from zero to moon in one year then that would be all of Google revenue. But spread over 10 years that's just 10% per year.