OK, let's work through this together. We're starting with 914 and we're going to multiply it by 72, which means we add 914 to itself 72 times.
Step 1: 0 + 914 = 914
Step 2: 914 + 914 = 1828
Step 3: 1828 + 914 = 2742
Step 4: 2742 + 914 = 3656
Step 5: 3656 + 914 = 4570
Step 6: 4570 + 914 = 5484
Step 7: 5484 + 914 = 6398
Step 8: 6398 + 914 = 7312
Step 9: 7312 + 914 = 8226
Step 10: 8226 + 914 = 9140
Step 11: 9140 + 914 = 10054
Step 12: 10054 + 914 = 10968
Step 13: 10968 + 914 = 11882
Step 14: 11882 + 914 = 12796
Step 15: 12796 + 914 = 13710
Step 16: 13710 + 914 = 14624
Step 17: 14624 + 914 = 15538
Step 18: 15538 + 914 = 16452
Step 19: 16452 + 914 = 17366
Step 20: 17366 + 914 = 18280
Step 21: 18280 + 914 = 19194
Step 22: 19194 + 914 = 20108
Step 23: 20108 + 914 = 21022
Step 24: 21022 + 914 = 21936
Step 25: 21936 + 914 = 22850
Step 26: 22850 + 914 = 23764
Step 27: 23764 + 914 = 24678
Step 28: 24678 + 914 = 25592
Step 29: 25592 + 914 = 26506
Step 30: 26506 + 914 = 27420
Step 31: 27420 + 914 = 28334
Step 32: 28334 + 914 = 29248
Step 33: 29248 + 914 = 30162
Step 34: 30162 + 914 = 31076
Step 35: 31076 + 914 = 31990
Step 36: 31990 + 914 = 32904
Step 37: 32904 + 914 = 33818
Step 38: 33818 + 914 = 34732
Step 39: 34732 + 914 = 35646
Step 40: 35646 + 914 = 36560
Step 41: 36560 + 914 = 37474
Step 42: 37474 + 914 = 38388
Step 43: 38388 + 914 = 39302
Step 44: 39302 + 914 = 40216
Step 45: 40216 + 914 = 41130
Step 46: 41130 + 914 = 42044
Step 47: 42044 + 914 = 42958
Step 48: 42958 + 914 = 43872
Step 49: 43872 + 914 = 44786
Step 50: 44786 + 914 = 45700
Step 51: 45700 + 914 = 46614
Step 52: 46614 + 914 = 47528
Step 53: 47528 + 914 = 48442
Step 54: 48442 + 914 = 49356
Step 55: 49356 + 914 = 50270
Step 56: 50270 + 914 = 51184
Step 57: 51184 + 914 = 52098
Step 58: 52098 + 914 = 53012
Step 59: 53012 + 914 = 53926
Step 60: 53926 + 914 = 54840
Step 61: 54840 + 914 = 55754
Step 62: 55754 + 914 = 56668
Step 63: 56668 + 914 = 57582
Step 64: 57582 + 914 = 58496
Step 65: 58496 + 914 = 59410
Step 66: 59410 + 914 = 60324
Step 67: 60324 + 914 = 61238
Step 68: 61238 + 914 = 62152
Step 69: 62152 + 914 = 63066
Step 70: 63066 + 914 = 63980
Step 71: 63980 + 914 = 64894
Step 72: 64894 + 914 = 65808

So, 914*72 = 65808