OK, let's work through this together. We're starting with 582 and we're going to multiply it by 84, which means we add 582 to itself 84 times.
Step 1: 0 + 582 = 582
Step 2: 582 + 582 = 1164
Step 3: 1164 + 582 = 1746
Step 4: 1746 + 582 = 2328
Step 5: 2328 + 582 = 2910
Step 6: 2910 + 582 = 3492
Step 7: 3492 + 582 = 4074
Step 8: 4074 + 582 = 4656
Step 9: 4656 + 582 = 5238
Step 10: 5238 + 582 = 5820
Step 11: 5820 + 582 = 6402
Step 12: 6402 + 582 = 6984
Step 13: 6984 + 582 = 7566
Step 14: 7566 + 582 = 8148
Step 15: 8148 + 582 = 8730
Step 16: 8730 + 582 = 9312
Step 17: 9312 + 582 = 9894
Step 18: 9894 + 582 = 10476
Step 19: 10476 + 582 = 11058
Step 20: 11058 + 582 = 11640
Step 21: 11640 + 582 = 12222
Step 22: 12222 + 582 = 12804
Step 23: 12804 + 582 = 13386
Step 24: 13386 + 582 = 13968
Step 25: 13968 + 582 = 14550
Step 26: 14550 + 582 = 15132
Step 27: 15132 + 582 = 15714
Step 28: 15714 + 582 = 16296
Step 29: 16296 + 582 = 16878
Step 30: 16878 + 582 = 17460
Step 31: 17460 + 582 = 18042
Step 32: 18042 + 582 = 18624
Step 33: 18624 + 582 = 19206
Step 34: 19206 + 582 = 19788
Step 35: 19788 + 582 = 20370
Step 36: 20370 + 582 = 20952
Step 37: 20952 + 582 = 21534
Step 38: 21534 + 582 = 22116
Step 39: 22116 + 582 = 22698
Step 40: 22698 + 582 = 23280
Step 41: 23280 + 582 = 23862
Step 42: 23862 + 582 = 24444
Step 43: 24444 + 582 = 25026
Step 44: 25026 + 582 = 25608
Step 45: 25608 + 582 = 26190
Step 46: 26190 + 582 = 26772
Step 47: 26772 + 582 = 27354
Step 48: 27354 + 582 = 27936
Step 49: 27936 + 582 = 28518
Step 50: 28518 + 582 = 29100
Step 51: 29100 + 582 = 29682
Step 52: 29682 + 582 = 30264
Step 53: 30264 + 582 = 30846
Step 54: 30846 + 582 = 31428
Step 55: 31428 + 582 = 32010
Step 56: 32010 + 582 = 32592
Step 57: 32592 + 582 = 33174
Step 58: 33174 + 582 = 33756
Step 59: 33756 + 582 = 34338
Step 60: 34338 + 582 = 34920
Step 61: 34920 + 582 = 35502
Step 62: 35502 + 582 = 36084
Step 63: 36084 + 582 = 36666
Step 64: 36666 + 582 = 37248
Step 65: 37248 + 582 = 37830
Step 66: 37830 + 582 = 38412
Step 67: 38412 + 582 = 38994
Step 68: 38994 + 582 = 39576
Step 69: 39576 + 582 = 40158
Step 70: 40158 + 582 = 40740
Step 71: 40740 + 582 = 41322
Step 72: 41322 + 582 = 41904
Step 73: 41904 + 582 = 42486
Step 74: 42486 + 582 = 43068
Step 75: 43068 + 582 = 43650
Step 76: 43650 + 582 = 44232
Step 77: 44232 + 582 = 44814
Step 78: 44814 + 582 = 45396
Step 79: 45396 + 582 = 45978
Step 80: 45978 + 582 = 46560
Step 81: 46560 + 582 = 47142
Step 82: 47142 + 582 = 47724
Step 83: 47724 + 582 = 48306
Step 84: 48306 + 582 = 48888

So, 582*84 = 48888