Without delay, let's solve this. We've got 356 and we will be multiplying it by 45, that is, adding 356 to itself 45 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
Step 20: 6764 + 356 = 7120
Step 21: 7120 + 356 = 7476
Step 22: 7476 + 356 = 7832
Step 23: 7832 + 356 = 8188
Step 24: 8188 + 356 = 8544
Step 25: 8544 + 356 = 8900
Step 26: 8900 + 356 = 9256
Step 27: 9256 + 356 = 9612
Step 28: 9612 + 356 = 9968
Step 29: 9968 + 356 = 10324
Step 30: 10324 + 356 = 10680
Step 31: 10680 + 356 = 11036
Step 32: 11036 + 356 = 11392
Step 33: 11392 + 356 = 11748
Step 34: 11748 + 356 = 12104
Step 35: 12104 + 356 = 12460
Step 36: 12460 + 356 = 12816
Step 37: 12816 + 356 = 13172
Step 38: 13172 + 356 = 13528
Step 39: 13528 + 356 = 13884
Step 40: 13884 + 356 = 14240
Step 41: 14240 + 356 = 14596
Step 42: 14596 + 356 = 14952
Step 43: 14952 + 356 = 15308
Step 44: 15308 + 356 = 15664
Step 45: 15664 + 356 = 16020

So, 356*45 = 16020