OK, let's crack this. We're given 543 and our task is to multiply it by 41. Essentially, we'll be adding 543 to itself 41 times.
Step 1: 0 + 543 = 543
Step 2: 543 + 543 = 1086
Step 3: 1086 + 543 = 1629
Step 4: 1629 + 543 = 2172
Step 5: 2172 + 543 = 2715
Step 6: 2715 + 543 = 3258
Step 7: 3258 + 543 = 3801
Step 8: 3801 + 543 = 4344
Step 9: 4344 + 543 = 4887
Step 10: 4887 + 543 = 5430
Step 11: 5430 + 543 = 5973
Step 12: 5973 + 543 = 6516
Step 13: 6516 + 543 = 7059
Step 14: 7059 + 543 = 7602
Step 15: 7602 + 543 = 8145
Step 16: 8145 + 543 = 8688
Step 17: 8688 + 543 = 9231
Step 18: 9231 + 543 = 9774
Step 19: 9774 + 543 = 10317
Step 20: 10317 + 543 = 10860
Step 21: 10860 + 543 = 11403
Step 22: 11403 + 543 = 11946
Step 23: 11946 + 543 = 12489
Step 24: 12489 + 543 = 13032
Step 25: 13032 + 543 = 13575
Step 26: 13575 + 543 = 14118
Step 27: 14118 + 543 = 14661
Step 28: 14661 + 543 = 15204
Step 29: 15204 + 543 = 15747
Step 30: 15747 + 543 = 16290
Step 31: 16290 + 543 = 16833
Step 32: 16833 + 543 = 17376
Step 33: 17376 + 543 = 17919
Step 34: 17919 + 543 = 18462
Step 35: 18462 + 543 = 19005
Step 36: 19005 + 543 = 19548
Step 37: 19548 + 543 = 20091
Step 38: 20091 + 543 = 20634
Step 39: 20634 + 543 = 21177
Step 40: 21177 + 543 = 21720
Step 41: 21720 + 543 = 22263

So, 543*41 = 22263