OK, let's work through this together. We're starting with 613 and we're going to multiply it by 43, which means we add 613 to itself 43 times.
Step 1: 0 + 613 = 613
Step 2: 613 + 613 = 1226
Step 3: 1226 + 613 = 1839
Step 4: 1839 + 613 = 2452
Step 5: 2452 + 613 = 3065
Step 6: 3065 + 613 = 3678
Step 7: 3678 + 613 = 4291
Step 8: 4291 + 613 = 4904
Step 9: 4904 + 613 = 5517
Step 10: 5517 + 613 = 6130
Step 11: 6130 + 613 = 6743
Step 12: 6743 + 613 = 7356
Step 13: 7356 + 613 = 7969
Step 14: 7969 + 613 = 8582
Step 15: 8582 + 613 = 9195
Step 16: 9195 + 613 = 9808
Step 17: 9808 + 613 = 10421
Step 18: 10421 + 613 = 11034
Step 19: 11034 + 613 = 11647
Step 20: 11647 + 613 = 12260
Step 21: 12260 + 613 = 12873
Step 22: 12873 + 613 = 13486
Step 23: 13486 + 613 = 14099
Step 24: 14099 + 613 = 14712
Step 25: 14712 + 613 = 15325
Step 26: 15325 + 613 = 15938
Step 27: 15938 + 613 = 16551
Step 28: 16551 + 613 = 17164
Step 29: 17164 + 613 = 17777
Step 30: 17777 + 613 = 18390
Step 31: 18390 + 613 = 19003
Step 32: 19003 + 613 = 19616
Step 33: 19616 + 613 = 20229
Step 34: 20229 + 613 = 20842
Step 35: 20842 + 613 = 21455
Step 36: 21455 + 613 = 22068
Step 37: 22068 + 613 = 22681
Step 38: 22681 + 613 = 23294
Step 39: 23294 + 613 = 23907
Step 40: 23907 + 613 = 24520
Step 41: 24520 + 613 = 25133
Step 42: 25133 + 613 = 25746
Step 43: 25746 + 613 = 26359

So, 613*43 = 26359