Let's roll up our sleeves and solve this. We have 727 and we're going to multiply it by 19, essentially adding 727 to itself 19 times.
Step 1: 0 + 727 = 727
Step 2: 727 + 727 = 1454
Step 3: 1454 + 727 = 2181
Step 4: 2181 + 727 = 2908
Step 5: 2908 + 727 = 3635
Step 6: 3635 + 727 = 4362
Step 7: 4362 + 727 = 5089
Step 8: 5089 + 727 = 5816
Step 9: 5816 + 727 = 6543
Step 10: 6543 + 727 = 7270
Step 11: 7270 + 727 = 7997
Step 12: 7997 + 727 = 8724
Step 13: 8724 + 727 = 9451
Step 14: 9451 + 727 = 10178
Step 15: 10178 + 727 = 10905
Step 16: 10905 + 727 = 11632
Step 17: 11632 + 727 = 12359
Step 18: 12359 + 727 = 13086
Step 19: 13086 + 727 = 13813

So, 727*19 = 13813