OK, let's work through this together. We're starting with 356 and we're going to multiply it by 19, which means we add 356 to itself 19 times.
Step 1: 0 + 356 = 356
Step 2: 356 + 356 = 712
Step 3: 712 + 356 = 1068
Step 4: 1068 + 356 = 1424
Step 5: 1424 + 356 = 1780
Step 6: 1780 + 356 = 2136
Step 7: 2136 + 356 = 2492
Step 8: 2492 + 356 = 2848
Step 9: 2848 + 356 = 3204
Step 10: 3204 + 356 = 3560
Step 11: 3560 + 356 = 3916
Step 12: 3916 + 356 = 4272
Step 13: 4272 + 356 = 4628
Step 14: 4628 + 356 = 4984
Step 15: 4984 + 356 = 5340
Step 16: 5340 + 356 = 5696
Step 17: 5696 + 356 = 6052
Step 18: 6052 + 356 = 6408
Step 19: 6408 + 356 = 6764

So, 356*19 = 6764