OK, let's crack this. We're given 749 and our task is to multiply it by 64. Essentially, we'll be adding 749 to itself 64 times.
Step 1: 0 + 749 = 749
Step 2: 749 + 749 = 1498
Step 3: 1498 + 749 = 2247
Step 4: 2247 + 749 = 2996
Step 5: 2996 + 749 = 3745
Step 6: 3745 + 749 = 4494
Step 7: 4494 + 749 = 5243
Step 8: 5243 + 749 = 5992
Step 9: 5992 + 749 = 6741
Step 10: 6741 + 749 = 7490
Step 11: 7490 + 749 = 8239
Step 12: 8239 + 749 = 8988
Step 13: 8988 + 749 = 9737
Step 14: 9737 + 749 = 10486
Step 15: 10486 + 749 = 11235
Step 16: 11235 + 749 = 11984
Step 17: 11984 + 749 = 12733
Step 18: 12733 + 749 = 13482
Step 19: 13482 + 749 = 14231
Step 20: 14231 + 749 = 14980
Step 21: 14980 + 749 = 15729
Step 22: 15729 + 749 = 16478
Step 23: 16478 + 749 = 17227
Step 24: 17227 + 749 = 17976
Step 25: 17976 + 749 = 18725
Step 26: 18725 + 749 = 19474
Step 27: 19474 + 749 = 20223
Step 28: 20223 + 749 = 20972
Step 29: 20972 + 749 = 21721
Step 30: 21721 + 749 = 22470
Step 31: 22470 + 749 = 23219
Step 32: 23219 + 749 = 23968
Step 33: 23968 + 749 = 24717
Step 34: 24717 + 749 = 25466
Step 35: 25466 + 749 = 26215
Step 36: 26215 + 749 = 26964
Step 37: 26964 + 749 = 27713
Step 38: 27713 + 749 = 28462
Step 39: 28462 + 749 = 29211
Step 40: 29211 + 749 = 29960
Step 41: 29960 + 749 = 30709
Step 42: 30709 + 749 = 31458
Step 43: 31458 + 749 = 32207
Step 44: 32207 + 749 = 32956
Step 45: 32956 + 749 = 33705
Step 46: 33705 + 749 = 34454
Step 47: 34454 + 749 = 35203
Step 48: 35203 + 749 = 35952
Step 49: 35952 + 749 = 36701
Step 50: 36701 + 749 = 37450
Step 51: 37450 + 749 = 38199
Step 52: 38199 + 749 = 38948
Step 53: 38948 + 749 = 39697
Step 54: 39697 + 749 = 40446
Step 55: 40446 + 749 = 41195
Step 56: 41195 + 749 = 41944
Step 57: 41944 + 749 = 42693
Step 58: 42693 + 749 = 43442
Step 59: 43442 + 749 = 44191
Step 60: 44191 + 749 = 44940
Step 61: 44940 + 749 = 45689
Step 62: 45689 + 749 = 46438
Step 63: 46438 + 749 = 47187
Step 64: 47187 + 749 = 47936

So, 749*64 = 47936