Alright, let's solve this math problem step by step. First, we have the number 356. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 28. So, we're going to take the number 356 and add it to itself 28 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

So, 356*28 = 9968