OK, let's crack this. We're given 885 and our task is to multiply it by 17. Essentially, we'll be adding 885 to itself 17 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
Step 14: 11505 + 885 = 12390
Step 15: 12390 + 885 = 13275
Step 16: 13275 + 885 = 14160
Step 17: 14160 + 885 = 15045

So, 885*17 = 15045