Let's get this math done. We have 885 and we're going to multiply it by 13. This is the same as taking 885 and adding it to itself 13 times.
Step 1: 0 + 885 = 885
Step 2: 885 + 885 = 1770
Step 3: 1770 + 885 = 2655
Step 4: 2655 + 885 = 3540
Step 5: 3540 + 885 = 4425
Step 6: 4425 + 885 = 5310
Step 7: 5310 + 885 = 6195
Step 8: 6195 + 885 = 7080
Step 9: 7080 + 885 = 7965
Step 10: 7965 + 885 = 8850
Step 11: 8850 + 885 = 9735
Step 12: 9735 + 885 = 10620
Step 13: 10620 + 885 = 11505

So, 885*13 = 11505