Soo.... I have a question, again.

I currently have 38 lottery tickets. Just now, a total of 6,610,901 tickets were in use for the new week.
According to the site, that makes my win chance 0.00604991%.

However, 38 divided by 6,610,901 is 0.00000574808, which would make my win chance 0.0000574808 (one less zero, because 10 people win something).

Am I missing something here?

Also, I was wondering if 1 person can win twice in the same week. The tickets are anonimized, so there's no way of eliminating a person once one of their tickets has been drawn. That should make it theoretically possible to win even all 10 spots?