Alright, let's solve this math problem step by step. First, we have the number 543. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 37. So, we're going to take the number 543 and add it to itself 37 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

So, 543*37 = 20091