Let's roll up our sleeves and solve this. We have 528 and we're going to multiply it by 43, essentially adding 528 to itself 43 times.
Step 1: 0 + 528 = 528
Step 2: 528 + 528 = 1056
Step 3: 1056 + 528 = 1584
Step 4: 1584 + 528 = 2112
Step 5: 2112 + 528 = 2640
Step 6: 2640 + 528 = 3168
Step 7: 3168 + 528 = 3696
Step 8: 3696 + 528 = 4224
Step 9: 4224 + 528 = 4752
Step 10: 4752 + 528 = 5280
Step 11: 5280 + 528 = 5808
Step 12: 5808 + 528 = 6336
Step 13: 6336 + 528 = 6864
Step 14: 6864 + 528 = 7392
Step 15: 7392 + 528 = 7920
Step 16: 7920 + 528 = 8448
Step 17: 8448 + 528 = 8976
Step 18: 8976 + 528 = 9504
Step 19: 9504 + 528 = 10032
Step 20: 10032 + 528 = 10560
Step 21: 10560 + 528 = 11088
Step 22: 11088 + 528 = 11616
Step 23: 11616 + 528 = 12144
Step 24: 12144 + 528 = 12672
Step 25: 12672 + 528 = 13200
Step 26: 13200 + 528 = 13728
Step 27: 13728 + 528 = 14256
Step 28: 14256 + 528 = 14784
Step 29: 14784 + 528 = 15312
Step 30: 15312 + 528 = 15840
Step 31: 15840 + 528 = 16368
Step 32: 16368 + 528 = 16896
Step 33: 16896 + 528 = 17424
Step 34: 17424 + 528 = 17952
Step 35: 17952 + 528 = 18480
Step 36: 18480 + 528 = 19008
Step 37: 19008 + 528 = 19536
Step 38: 19536 + 528 = 20064
Step 39: 20064 + 528 = 20592
Step 40: 20592 + 528 = 21120
Step 41: 21120 + 528 = 21648
Step 42: 21648 + 528 = 22176
Step 43: 22176 + 528 = 22704

So, 528*43 = 22704