Let's roll up our sleeves and solve this. We have 818 and we're going to multiply it by 17, essentially adding 818 to itself 17 times.
Step 1: 0 + 818 = 818
Step 2: 818 + 818 = 1636
Step 3: 1636 + 818 = 2454
Step 4: 2454 + 818 = 3272
Step 5: 3272 + 818 = 4090
Step 6: 4090 + 818 = 4908
Step 7: 4908 + 818 = 5726
Step 8: 5726 + 818 = 6544
Step 9: 6544 + 818 = 7362
Step 10: 7362 + 818 = 8180
Step 11: 8180 + 818 = 8998
Step 12: 8998 + 818 = 9816
Step 13: 9816 + 818 = 10634
Step 14: 10634 + 818 = 11452
Step 15: 11452 + 818 = 12270
Step 16: 12270 + 818 = 13088
Step 17: 13088 + 818 = 13906

So, 818*17 = 13906