deadsea - 6:32 pm on Apr 5, 2012 (gmt 0)
If your site has 10 million pages and pagerank 7 then:
Googlebot will have crawled every single page on your site at least once.
Google will index several hundred thousand pages.
100,000 pages would get at least one referral from google search in any given month.
A few thousand pages might consistently get referrals from google every day.
Even the really big sites may not have as many pages indexed as you might think.