OK, let's work through this together. We're starting with 617 and we're going to multiply it by 147, which means we add 617 to itself 147 times.
Step 1: 0 + 617 = 617
Step 2: 617 + 617 = 1234
Step 3: 1234 + 617 = 1851
Step 4: 1851 + 617 = 2468
Step 5: 2468 + 617 = 3085
Step 6: 3085 + 617 = 3702
Step 7: 3702 + 617 = 4319
Step 8: 4319 + 617 = 4936
Step 9: 4936 + 617 = 5553
Step 10: 5553 + 617 = 6170
Step 11: 6170 + 617 = 6787
Step 12: 6787 + 617 = 7404
Step 13: 7404 + 617 = 8021
Step 14: 8021 + 617 = 8638
Step 15: 8638 + 617 = 9255
Step 16: 9255 + 617 = 9872
Step 17: 9872 + 617 = 10489
Step 18: 10489 + 617 = 11106
Step 19: 11106 + 617 = 11723
Step 20: 11723 + 617 = 12340
Step 21: 12340 + 617 = 12957
Step 22: 12957 + 617 = 13574
Step 23: 13574 + 617 = 14191
Step 24: 14191 + 617 = 14808
Step 25: 14808 + 617 = 15425
Step 26: 15425 + 617 = 16042
Step 27: 16042 + 617 = 16659
Step 28: 16659 + 617 = 17276
Step 29: 17276 + 617 = 17893
Step 30: 17893 + 617 = 18510
Step 31: 18510 + 617 = 19127
Step 32: 19127 + 617 = 19744
Step 33: 19744 + 617 = 20361
Step 34: 20361 + 617 = 20978
Step 35: 20978 + 617 = 21595
Step 36: 21595 + 617 = 22212
Step 37: 22212 + 617 = 22829
Step 38: 22829 + 617 = 23446
Step 39: 23446 + 617 = 24063
Step 40: 24063 + 617 = 24680
Step 41: 24680 + 617 = 25297
Step 42: 25297 + 617 = 25914
Step 43: 25914 + 617 = 26531
Step 44: 26531 + 617 = 27148
Step 45: 27148 + 617 = 27765
Step 46: 27765 + 617 = 28382
Step 47: 28382 + 617 = 28999
Step 48: 28999 + 617 = 29616
Step 49: 29616 + 617 = 30233
Step 50: 30233 + 617 = 30850
Step 51: 30850 + 617 = 31467
Step 52: 31467 + 617 = 32084
Step 53: 32084 + 617 = 32701
Step 54: 32701 + 617 = 33318
Step 55: 33318 + 617 = 33935
Step 56: 33935 + 617 = 34552
Step 57: 34552 + 617 = 35169
Step 58: 35169 + 617 = 35786
Step 59: 35786 + 617 = 36403
Step 60: 36403 + 617 = 37020
Step 61: 37020 + 617 = 37637
Step 62: 37637 + 617 = 38254
Step 63: 38254 + 617 = 38871
Step 64: 38871 + 617 = 39488
Step 65: 39488 + 617 = 40105
Step 66: 40105 + 617 = 40722
Step 67: 40722 + 617 = 41339
Step 68: 41339 + 617 = 41956
Step 69: 41956 + 617 = 42573
Step 70: 42573 + 617 = 43190
Step 71: 43190 + 617 = 43807
Step 72: 43807 + 617 = 44424
Step 73: 44424 + 617 = 45041
Step 74: 45041 + 617 = 45658
Step 75: 45658 + 617 = 46275
Step 76: 46275 + 617 = 46892
Step 77: 46892 + 617 = 47509
Step 78: 47509 + 617 = 48126
Step 79: 48126 + 617 = 48743
Step 80: 48743 + 617 = 49360
Step 81: 49360 + 617 = 49977
Step 82: 49977 + 617 = 50594
Step 83: 50594 + 617 = 51211
Step 84: 51211 + 617 = 51828
Step 85: 51828 + 617 = 52445
Step 86: 52445 + 617 = 53062
Step 87: 53062 + 617 = 53679
Step 88: 53679 + 617 = 54296
Step 89: 54296 + 617 = 54913
Step 90: 54913 + 617 = 55530
Step 91: 55530 + 617 = 56147
Step 92: 56147 + 617 = 56764
Step 93: 56764 + 617 = 57381
Step 94: 57381 + 617 = 57998
Step 95: 57998 + 617 = 58615
Step 96: 58615 + 617 = 59232
Step 97: 59232 + 617 = 59849
Step 98: 59849 + 617 = 60466
Step 99: 60466 + 617 = 61083
Step 100: 61083 + 617 = 61700
Step 101: 61700 + 617 = 62317
Step 102: 62317 + 617 = 62934
Step 103: 62934 + 617 = 63551
Step 104: 63551 + 617 = 64168
Step 105: 64168 + 617 = 64785
Step 106: 64785 + 617 = 65402
Step 107: 65402 + 617 = 66019
Step 108: 66019 + 617 = 66636
Step 109: 66636 + 617 = 67253
Step 110: 67253 + 617 = 67870
Step 111: 67870 + 617 = 68487
Step 112: 68487 + 617 = 69104
Step 113: 69104 + 617 = 69721
Step 114: 69721 + 617 = 70338
Step 115: 70338 + 617 = 70955
Step 116: 70955 + 617 = 71572
Step 117: 71572 + 617 = 72189
Step 118: 72189 + 617 = 72806
Step 119: 72806 + 617 = 73423
Step 120: 73423 + 617 = 74040
Step 121: 74040 + 617 = 74657
Step 122: 74657 + 617 = 75274
Step 123: 75274 + 617 = 75891
Step 124: 75891 + 617 = 76508
Step 125: 76508 + 617 = 77125
Step 126: 77125 + 617 = 77742
Step 127: 77742 + 617 = 78359
Step 128: 78359 + 617 = 78976
Step 129: 78976 + 617 = 79593
Step 130: 79593 + 617 = 80210
Step 131: 80210 + 617 = 80827
Step 132: 80827 + 617 = 81444
Step 133: 81444 + 617 = 82061
Step 134: 82061 + 617 = 82678
Step 135: 82678 + 617 = 83295
Step 136: 83295 + 617 = 83912
Step 137: 83912 + 617 = 84529
Step 138: 84529 + 617 = 85146
Step 139: 85146 + 617 = 85763
Step 140: 85763 + 617 = 86380
Step 141: 86380 + 617 = 86997
Step 142: 86997 + 617 = 87614
Step 143: 87614 + 617 = 88231
Step 144: 88231 + 617 = 88848
Step 145: 88848 + 617 = 89465
Step 146: 89465 + 617 = 90082
Step 147: 90082 + 617 = 90699

So, 617*147 = 90699