Let's get this math done. We have 263 and we're going to multiply it by 123. This is the same as taking 263 and adding it to itself 123 times.
Step 1: 0 + 263 = 263
Step 2: 263 + 263 = 526
Step 3: 526 + 263 = 789
Step 4: 789 + 263 = 1052
Step 5: 1052 + 263 = 1315
Step 6: 1315 + 263 = 1578
Step 7: 1578 + 263 = 1841
Step 8: 1841 + 263 = 2104
Step 9: 2104 + 263 = 2367
Step 10: 2367 + 263 = 2630
Step 11: 2630 + 263 = 2893
Step 12: 2893 + 263 = 3156
Step 13: 3156 + 263 = 3419
Step 14: 3419 + 263 = 3682
Step 15: 3682 + 263 = 3945
Step 16: 3945 + 263 = 4208
Step 17: 4208 + 263 = 4471
Step 18: 4471 + 263 = 4734
Step 19: 4734 + 263 = 4997
Step 20: 4997 + 263 = 5260
Step 21: 5260 + 263 = 5523
Step 22: 5523 + 263 = 5786
Step 23: 5786 + 263 = 6049
Step 24: 6049 + 263 = 6312
Step 25: 6312 + 263 = 6575
Step 26: 6575 + 263 = 6838
Step 27: 6838 + 263 = 7101
Step 28: 7101 + 263 = 7364
Step 29: 7364 + 263 = 7627
Step 30: 7627 + 263 = 7890
Step 31: 7890 + 263 = 8153
Step 32: 8153 + 263 = 8416
Step 33: 8416 + 263 = 8679
Step 34: 8679 + 263 = 8942
Step 35: 8942 + 263 = 9205
Step 36: 9205 + 263 = 9468
Step 37: 9468 + 263 = 9731
Step 38: 9731 + 263 = 9994
Step 39: 9994 + 263 = 10257
Step 40: 10257 + 263 = 10520
Step 41: 10520 + 263 = 10783
Step 42: 10783 + 263 = 11046
Step 43: 11046 + 263 = 11309
Step 44: 11309 + 263 = 11572
Step 45: 11572 + 263 = 11835
Step 46: 11835 + 263 = 12098
Step 47: 12098 + 263 = 12361
Step 48: 12361 + 263 = 12624
Step 49: 12624 + 263 = 12887
Step 50: 12887 + 263 = 13150
Step 51: 13150 + 263 = 13413
Step 52: 13413 + 263 = 13676
Step 53: 13676 + 263 = 13939
Step 54: 13939 + 263 = 14202
Step 55: 14202 + 263 = 14465
Step 56: 14465 + 263 = 14728
Step 57: 14728 + 263 = 14991
Step 58: 14991 + 263 = 15254
Step 59: 15254 + 263 = 15517
Step 60: 15517 + 263 = 15780
Step 61: 15780 + 263 = 16043
Step 62: 16043 + 263 = 16306
Step 63: 16306 + 263 = 16569
Step 64: 16569 + 263 = 16832
Step 65: 16832 + 263 = 17095
Step 66: 17095 + 263 = 17358
Step 67: 17358 + 263 = 17621
Step 68: 17621 + 263 = 17884
Step 69: 17884 + 263 = 18147
Step 70: 18147 + 263 = 18410
Step 71: 18410 + 263 = 18673
Step 72: 18673 + 263 = 18936
Step 73: 18936 + 263 = 19199
Step 74: 19199 + 263 = 19462
Step 75: 19462 + 263 = 19725
Step 76: 19725 + 263 = 19988
Step 77: 19988 + 263 = 20251
Step 78: 20251 + 263 = 20514
Step 79: 20514 + 263 = 20777
Step 80: 20777 + 263 = 21040
Step 81: 21040 + 263 = 21303
Step 82: 21303 + 263 = 21566
Step 83: 21566 + 263 = 21829
Step 84: 21829 + 263 = 22092
Step 85: 22092 + 263 = 22355
Step 86: 22355 + 263 = 22618
Step 87: 22618 + 263 = 22881
Step 88: 22881 + 263 = 23144
Step 89: 23144 + 263 = 23407
Step 90: 23407 + 263 = 23670
Step 91: 23670 + 263 = 23933
Step 92: 23933 + 263 = 24196
Step 93: 24196 + 263 = 24459
Step 94: 24459 + 263 = 24722
Step 95: 24722 + 263 = 24985
Step 96: 24985 + 263 = 25248
Step 97: 25248 + 263 = 25511
Step 98: 25511 + 263 = 25774
Step 99: 25774 + 263 = 26037
Step 100: 26037 + 263 = 26300
Step 101: 26300 + 263 = 26563
Step 102: 26563 + 263 = 26826
Step 103: 26826 + 263 = 27089
Step 104: 27089 + 263 = 27352
Step 105: 27352 + 263 = 27615
Step 106: 27615 + 263 = 27878
Step 107: 27878 + 263 = 28141
Step 108: 28141 + 263 = 28404
Step 109: 28404 + 263 = 28667
Step 110: 28667 + 263 = 28930
Step 111: 28930 + 263 = 29193
Step 112: 29193 + 263 = 29456
Step 113: 29456 + 263 = 29719
Step 114: 29719 + 263 = 29982
Step 115: 29982 + 263 = 30245
Step 116: 30245 + 263 = 30508
Step 117: 30508 + 263 = 30771
Step 118: 30771 + 263 = 31034
Step 119: 31034 + 263 = 31297
Step 120: 31297 + 263 = 31560
Step 121: 31560 + 263 = 31823
Step 122: 31823 + 263 = 32086
Step 123: 32086 + 263 = 32349

So, 263*123 = 32349