Uh, forgive me if this doesn't make any sense, but why would the numbers of the actual votes be generated fradulently?
Wouldn't it be easiest to say, "Okay, Ahmadi is going to win 57% to 65% in all reporting districts," and so on and so forth and then use those fractions and the known eligible voter numbers to come up with the actual counts?
In which case, shouldn't we be looking at the last digits of the percentage of votes won by district?