OK, let's crack this. We're given 654 and our task is to multiply it by 248. Essentially, we'll be adding 654 to itself 248 times.
Step 1: 0 + 654 = 654
Step 2: 654 + 654 = 1308
Step 3: 1308 + 654 = 1962
Step 4: 1962 + 654 = 2616
Step 5: 2616 + 654 = 3270
Step 6: 3270 + 654 = 3924
Step 7: 3924 + 654 = 4578
Step 8: 4578 + 654 = 5232
Step 9: 5232 + 654 = 5886
Step 10: 5886 + 654 = 6540
Step 11: 6540 + 654 = 7194
Step 12: 7194 + 654 = 7848
Step 13: 7848 + 654 = 8502
Step 14: 8502 + 654 = 9156
Step 15: 9156 + 654 = 9810
Step 16: 9810 + 654 = 10464
Step 17: 10464 + 654 = 11118
Step 18: 11118 + 654 = 11772
Step 19: 11772 + 654 = 12426
Step 20: 12426 + 654 = 13080
Step 21: 13080 + 654 = 13734
Step 22: 13734 + 654 = 14388
Step 23: 14388 + 654 = 15042
Step 24: 15042 + 654 = 15696
Step 25: 15696 + 654 = 16350
Step 26: 16350 + 654 = 17004
Step 27: 17004 + 654 = 17658
Step 28: 17658 + 654 = 18312
Step 29: 18312 + 654 = 18966
Step 30: 18966 + 654 = 19620
Step 31: 19620 + 654 = 20274
Step 32: 20274 + 654 = 20928
Step 33: 20928 + 654 = 21582
Step 34: 21582 + 654 = 22236
Step 35: 22236 + 654 = 22890
Step 36: 22890 + 654 = 23544
Step 37: 23544 + 654 = 24198
Step 38: 24198 + 654 = 24852
Step 39: 24852 + 654 = 25506
Step 40: 25506 + 654 = 26160
Step 41: 26160 + 654 = 26814
Step 42: 26814 + 654 = 27468
Step 43: 27468 + 654 = 28122
Step 44: 28122 + 654 = 28776
Step 45: 28776 + 654 = 29430
Step 46: 29430 + 654 = 30084
Step 47: 30084 + 654 = 30738
Step 48: 30738 + 654 = 31392
Step 49: 31392 + 654 = 32046
Step 50: 32046 + 654 = 32700
Step 51: 32700 + 654 = 33354
Step 52: 33354 + 654 = 34008
Step 53: 34008 + 654 = 34662
Step 54: 34662 + 654 = 35316
Step 55: 35316 + 654 = 35970
Step 56: 35970 + 654 = 36624
Step 57: 36624 + 654 = 37278
Step 58: 37278 + 654 = 37932
Step 59: 37932 + 654 = 38586
Step 60: 38586 + 654 = 39240
Step 61: 39240 + 654 = 39894
Step 62: 39894 + 654 = 40548
Step 63: 40548 + 654 = 41202
Step 64: 41202 + 654 = 41856
Step 65: 41856 + 654 = 42510
Step 66: 42510 + 654 = 43164
Step 67: 43164 + 654 = 43818
Step 68: 43818 + 654 = 44472
Step 69: 44472 + 654 = 45126
Step 70: 45126 + 654 = 45780
Step 71: 45780 + 654 = 46434
Step 72: 46434 + 654 = 47088
Step 73: 47088 + 654 = 47742
Step 74: 47742 + 654 = 48396
Step 75: 48396 + 654 = 49050
Step 76: 49050 + 654 = 49704
Step 77: 49704 + 654 = 50358
Step 78: 50358 + 654 = 51012
Step 79: 51012 + 654 = 51666
Step 80: 51666 + 654 = 52320
Step 81: 52320 + 654 = 52974
Step 82: 52974 + 654 = 53628
Step 83: 53628 + 654 = 54282
Step 84: 54282 + 654 = 54936
Step 85: 54936 + 654 = 55590
Step 86: 55590 + 654 = 56244
Step 87: 56244 + 654 = 56898
Step 88: 56898 + 654 = 57552
Step 89: 57552 + 654 = 58206
Step 90: 58206 + 654 = 58860
Step 91: 58860 + 654 = 59514
Step 92: 59514 + 654 = 60168
Step 93: 60168 + 654 = 60822
Step 94: 60822 + 654 = 61476
Step 95: 61476 + 654 = 62130
Step 96: 62130 + 654 = 62784
Step 97: 62784 + 654 = 63438
Step 98: 63438 + 654 = 64092
Step 99: 64092 + 654 = 64746
Step 100: 64746 + 654 = 65400
Step 101: 65400 + 654 = 66054
Step 102: 66054 + 654 = 66708
Step 103: 66708 + 654 = 67362
Step 104: 67362 + 654 = 68016
Step 105: 68016 + 654 = 68670
Step 106: 68670 + 654 = 69324
Step 107: 69324 + 654 = 69978
Step 108: 69978 + 654 = 70632
Step 109: 70632 + 654 = 71286
Step 110: 71286 + 654 = 71940
Step 111: 71940 + 654 = 72594
Step 112: 72594 + 654 = 73248
Step 113: 73248 + 654 = 73902
Step 114: 73902 + 654 = 74556
Step 115: 74556 + 654 = 75210
Step 116: 75210 + 654 = 75864
Step 117: 75864 + 654 = 76518
Step 118: 76518 + 654 = 77172
Step 119: 77172 + 654 = 77826
Step 120: 77826 + 654 = 78480
Step 121: 78480 + 654 = 79134
Step 122: 79134 + 654 = 79788
Step 123: 79788 + 654 = 80442
Step 124: 80442 + 654 = 81096
Step 125: 81096 + 654 = 81750
Step 126: 81750 + 654 = 82404
Step 127: 82404 + 654 = 83058
Step 128: 83058 + 654 = 83712
Step 129: 83712 + 654 = 84366
Step 130: 84366 + 654 = 85020
Step 131: 85020 + 654 = 85674
Step 132: 85674 + 654 = 86328
Step 133: 86328 + 654 = 86982
Step 134: 86982 + 654 = 87636
Step 135: 87636 + 654 = 88290
Step 136: 88290 + 654 = 88944
Step 137: 88944 + 654 = 89598
Step 138: 89598 + 654 = 90252
Step 139: 90252 + 654 = 90906
Step 140: 90906 + 654 = 91560
Step 141: 91560 + 654 = 92214
Step 142: 92214 + 654 = 92868
Step 143: 92868 + 654 = 93522
Step 144: 93522 + 654 = 94176
Step 145: 94176 + 654 = 94830
Step 146: 94830 + 654 = 95484
Step 147: 95484 + 654 = 96138
Step 148: 96138 + 654 = 96792
Step 149: 96792 + 654 = 97446
Step 150: 97446 + 654 = 98100
Step 151: 98100 + 654 = 98754
Step 152: 98754 + 654 = 99408
Step 153: 99408 + 654 = 100062
Step 154: 100062 + 654 = 100716
Step 155: 100716 + 654 = 101370
Step 156: 101370 + 654 = 102024
Step 157: 102024 + 654 = 102678
Step 158: 102678 + 654 = 103332
Step 159: 103332 + 654 = 103986
Step 160: 103986 + 654 = 104640
Step 161: 104640 + 654 = 105294
Step 162: 105294 + 654 = 105948
Step 163: 105948 + 654 = 106602
Step 164: 106602 + 654 = 107256
Step 165: 107256 + 654 = 107910
Step 166: 107910 + 654 = 108564
Step 167: 108564 + 654 = 109218
Step 168: 109218 + 654 = 109872
Step 169: 109872 + 654 = 110526
Step 170: 110526 + 654 = 111180
Step 171: 111180 + 654 = 111834
Step 172: 111834 + 654 = 112488
Step 173: 112488 + 654 = 113142
Step 174: 113142 + 654 = 113796
Step 175: 113796 + 654 = 114450
Step 176: 114450 + 654 = 115104
Step 177: 115104 + 654 = 115758
Step 178: 115758 + 654 = 116412
Step 179: 116412 + 654 = 117066
Step 180: 117066 + 654 = 117720
Step 181: 117720 + 654 = 118374
Step 182: 118374 + 654 = 119028
Step 183: 119028 + 654 = 119682
Step 184: 119682 + 654 = 120336
Step 185: 120336 + 654 = 120990
Step 186: 120990 + 654 = 121644
Step 187: 121644 + 654 = 122298
Step 188: 122298 + 654 = 122952
Step 189: 122952 + 654 = 123606
Step 190: 123606 + 654 = 124260
Step 191: 124260 + 654 = 124914
Step 192: 124914 + 654 = 125568
Step 193: 125568 + 654 = 126222
Step 194: 126222 + 654 = 126876
Step 195: 126876 + 654 = 127530
Step 196: 127530 + 654 = 128184
Step 197: 128184 + 654 = 128838
Step 198: 128838 + 654 = 129492
Step 199: 129492 + 654 = 130146
Step 200: 130146 + 654 = 130800
Step 201: 130800 + 654 = 131454
Step 202: 131454 + 654 = 132108
Step 203: 132108 + 654 = 132762
Step 204: 132762 + 654 = 133416
Step 205: 133416 + 654 = 134070
Step 206: 134070 + 654 = 134724
Step 207: 134724 + 654 = 135378
Step 208: 135378 + 654 = 136032
Step 209: 136032 + 654 = 136686
Step 210: 136686 + 654 = 137340
Step 211: 137340 + 654 = 137994
Step 212: 137994 + 654 = 138648
Step 213: 138648 + 654 = 139302
Step 214: 139302 + 654 = 139956
Step 215: 139956 + 654 = 140610
Step 216: 140610 + 654 = 141264
Step 217: 141264 + 654 = 141918
Step 218: 141918 + 654 = 142572
Step 219: 142572 + 654 = 143226
Step 220: 143226 + 654 = 143880
Step 221: 143880 + 654 = 144534
Step 222: 144534 + 654 = 145188
Step 223: 145188 + 654 = 145842
Step 224: 145842 + 654 = 146496
Step 225: 146496 + 654 = 147150
Step 226: 147150 + 654 = 147804
Step 227: 147804 + 654 = 148458
Step 228: 148458 + 654 = 149112
Step 229: 149112 + 654 = 149766
Step 230: 149766 + 654 = 150420
Step 231: 150420 + 654 = 151074
Step 232: 151074 + 654 = 151728
Step 233: 151728 + 654 = 152382
Step 234: 152382 + 654 = 153036
Step 235: 153036 + 654 = 153690
Step 236: 153690 + 654 = 154344
Step 237: 154344 + 654 = 154998
Step 238: 154998 + 654 = 155652
Step 239: 155652 + 654 = 156306
Step 240: 156306 + 654 = 156960
Step 241: 156960 + 654 = 157614
Step 242: 157614 + 654 = 158268
Step 243: 158268 + 654 = 158922
Step 244: 158922 + 654 = 159576
Step 245: 159576 + 654 = 160230
Step 246: 160230 + 654 = 160884
Step 247: 160884 + 654 = 161538
Step 248: 161538 + 654 = 162192

So, 654*248 = 162192