You can do it 80 times before a combination is repeated.
0.05555 repeating
16
10 000 if you can start with zero.
2
Four times, with a remainder of 222 repeating. (152 / 36 = 4.222 repeating)
226.594 repeating times
0.461538 repeating times
46.153846 repeating
0.05416666 repeating times
The answer is 133.33 (repeating) times
2.7777 repeating times
19.6363 repeating times.