Sure thing, let's get straight to it. We start with 317 and we're going to multiply it by 123, which means adding 317 to itself 123 times.
Step 1: 0 + 317 = 317
Step 2: 317 + 317 = 634
Step 3: 634 + 317 = 951
Step 4: 951 + 317 = 1268
Step 5: 1268 + 317 = 1585
Step 6: 1585 + 317 = 1902
Step 7: 1902 + 317 = 2219
Step 8: 2219 + 317 = 2536
Step 9: 2536 + 317 = 2853
Step 10: 2853 + 317 = 3170
Step 11: 3170 + 317 = 3487
Step 12: 3487 + 317 = 3804
Step 13: 3804 + 317 = 4121
Step 14: 4121 + 317 = 4438
Step 15: 4438 + 317 = 4755
Step 16: 4755 + 317 = 5072
Step 17: 5072 + 317 = 5389
Step 18: 5389 + 317 = 5706
Step 19: 5706 + 317 = 6023
Step 20: 6023 + 317 = 6340
Step 21: 6340 + 317 = 6657
Step 22: 6657 + 317 = 6974
Step 23: 6974 + 317 = 7291
Step 24: 7291 + 317 = 7608
Step 25: 7608 + 317 = 7925
Step 26: 7925 + 317 = 8242
Step 27: 8242 + 317 = 8559
Step 28: 8559 + 317 = 8876
Step 29: 8876 + 317 = 9193
Step 30: 9193 + 317 = 9510
Step 31: 9510 + 317 = 9827
Step 32: 9827 + 317 = 10144
Step 33: 10144 + 317 = 10461
Step 34: 10461 + 317 = 10778
Step 35: 10778 + 317 = 11095
Step 36: 11095 + 317 = 11412
Step 37: 11412 + 317 = 11729
Step 38: 11729 + 317 = 12046
Step 39: 12046 + 317 = 12363
Step 40: 12363 + 317 = 12680
Step 41: 12680 + 317 = 12997
Step 42: 12997 + 317 = 13314
Step 43: 13314 + 317 = 13631
Step 44: 13631 + 317 = 13948
Step 45: 13948 + 317 = 14265
Step 46: 14265 + 317 = 14582
Step 47: 14582 + 317 = 14899
Step 48: 14899 + 317 = 15216
Step 49: 15216 + 317 = 15533
Step 50: 15533 + 317 = 15850
Step 51: 15850 + 317 = 16167
Step 52: 16167 + 317 = 16484
Step 53: 16484 + 317 = 16801
Step 54: 16801 + 317 = 17118
Step 55: 17118 + 317 = 17435
Step 56: 17435 + 317 = 17752
Step 57: 17752 + 317 = 18069
Step 58: 18069 + 317 = 18386
Step 59: 18386 + 317 = 18703
Step 60: 18703 + 317 = 19020
Step 61: 19020 + 317 = 19337
Step 62: 19337 + 317 = 19654
Step 63: 19654 + 317 = 19971
Step 64: 19971 + 317 = 20288
Step 65: 20288 + 317 = 20605
Step 66: 20605 + 317 = 20922
Step 67: 20922 + 317 = 21239
Step 68: 21239 + 317 = 21556
Step 69: 21556 + 317 = 21873
Step 70: 21873 + 317 = 22190
Step 71: 22190 + 317 = 22507
Step 72: 22507 + 317 = 22824
Step 73: 22824 + 317 = 23141
Step 74: 23141 + 317 = 23458
Step 75: 23458 + 317 = 23775
Step 76: 23775 + 317 = 24092
Step 77: 24092 + 317 = 24409
Step 78: 24409 + 317 = 24726
Step 79: 24726 + 317 = 25043
Step 80: 25043 + 317 = 25360
Step 81: 25360 + 317 = 25677
Step 82: 25677 + 317 = 25994
Step 83: 25994 + 317 = 26311
Step 84: 26311 + 317 = 26628
Step 85: 26628 + 317 = 26945
Step 86: 26945 + 317 = 27262
Step 87: 27262 + 317 = 27579
Step 88: 27579 + 317 = 27896
Step 89: 27896 + 317 = 28213
Step 90: 28213 + 317 = 28530
Step 91: 28530 + 317 = 28847
Step 92: 28847 + 317 = 29164
Step 93: 29164 + 317 = 29481
Step 94: 29481 + 317 = 29798
Step 95: 29798 + 317 = 30115
Step 96: 30115 + 317 = 30432
Step 97: 30432 + 317 = 30749
Step 98: 30749 + 317 = 31066
Step 99: 31066 + 317 = 31383
Step 100: 31383 + 317 = 31700
Step 101: 31700 + 317 = 32017
Step 102: 32017 + 317 = 32334
Step 103: 32334 + 317 = 32651
Step 104: 32651 + 317 = 32968
Step 105: 32968 + 317 = 33285
Step 106: 33285 + 317 = 33602
Step 107: 33602 + 317 = 33919
Step 108: 33919 + 317 = 34236
Step 109: 34236 + 317 = 34553
Step 110: 34553 + 317 = 34870
Step 111: 34870 + 317 = 35187
Step 112: 35187 + 317 = 35504
Step 113: 35504 + 317 = 35821
Step 114: 35821 + 317 = 36138
Step 115: 36138 + 317 = 36455
Step 116: 36455 + 317 = 36772
Step 117: 36772 + 317 = 37089
Step 118: 37089 + 317 = 37406
Step 119: 37406 + 317 = 37723
Step 120: 37723 + 317 = 38040
Step 121: 38040 + 317 = 38357
Step 122: 38357 + 317 = 38674
Step 123: 38674 + 317 = 38991

So, 317*123 = 38991