Continuing the discussion from Trivial Issues Thread:
According to the wiki, you get 1 fame per 2000 exp from 102800 exp on. From the exp before that you get a total of 218 fame at a varying rate.
Additionaly to that you get one fame per 6 minutes of active time, up to a total of 30 fame.
Strangely, this does not match the real situation: Every char which I found (only including those with more than 102800 exp) has 9 fame more than you’d expect from the formula above.
My theory is that active time counts before you reach 4 hours. If someone with more than 102800 exp and an active time between 180 and 234 minutes would post his exp and fame, we could verify this. Edit: The theory is wrong, see below.