Let's get this math done. We have 730 and we're going to multiply it by 19. This is the same as taking 730 and adding it to itself 19 times.
Step 1: 0 + 730 = 730
Step 2: 730 + 730 = 1460
Step 3: 1460 + 730 = 2190
Step 4: 2190 + 730 = 2920
Step 5: 2920 + 730 = 3650
Step 6: 3650 + 730 = 4380
Step 7: 4380 + 730 = 5110
Step 8: 5110 + 730 = 5840
Step 9: 5840 + 730 = 6570
Step 10: 6570 + 730 = 7300
Step 11: 7300 + 730 = 8030
Step 12: 8030 + 730 = 8760
Step 13: 8760 + 730 = 9490
Step 14: 9490 + 730 = 10220
Step 15: 10220 + 730 = 10950
Step 16: 10950 + 730 = 11680
Step 17: 11680 + 730 = 12410
Step 18: 12410 + 730 = 13140
Step 19: 13140 + 730 = 13870

So, 730*19 = 13870