OK, let's crack this. We're given 198 and our task is to multiply it by 143. Essentially, we'll be adding 198 to itself 143 times.
Step 1: 0 + 198 = 198
Step 2: 198 + 198 = 396
Step 3: 396 + 198 = 594
Step 4: 594 + 198 = 792
Step 5: 792 + 198 = 990
Step 6: 990 + 198 = 1188
Step 7: 1188 + 198 = 1386
Step 8: 1386 + 198 = 1584
Step 9: 1584 + 198 = 1782
Step 10: 1782 + 198 = 1980
Step 11: 1980 + 198 = 2178
Step 12: 2178 + 198 = 2376
Step 13: 2376 + 198 = 2574
Step 14: 2574 + 198 = 2772
Step 15: 2772 + 198 = 2970
Step 16: 2970 + 198 = 3168
Step 17: 3168 + 198 = 3366
Step 18: 3366 + 198 = 3564
Step 19: 3564 + 198 = 3762
Step 20: 3762 + 198 = 3960
Step 21: 3960 + 198 = 4158
Step 22: 4158 + 198 = 4356
Step 23: 4356 + 198 = 4554
Step 24: 4554 + 198 = 4752
Step 25: 4752 + 198 = 4950
Step 26: 4950 + 198 = 5148
Step 27: 5148 + 198 = 5346
Step 28: 5346 + 198 = 5544
Step 29: 5544 + 198 = 5742
Step 30: 5742 + 198 = 5940
Step 31: 5940 + 198 = 6138
Step 32: 6138 + 198 = 6336
Step 33: 6336 + 198 = 6534
Step 34: 6534 + 198 = 6732
Step 35: 6732 + 198 = 6930
Step 36: 6930 + 198 = 7128
Step 37: 7128 + 198 = 7326
Step 38: 7326 + 198 = 7524
Step 39: 7524 + 198 = 7722
Step 40: 7722 + 198 = 7920
Step 41: 7920 + 198 = 8118
Step 42: 8118 + 198 = 8316
Step 43: 8316 + 198 = 8514
Step 44: 8514 + 198 = 8712
Step 45: 8712 + 198 = 8910
Step 46: 8910 + 198 = 9108
Step 47: 9108 + 198 = 9306
Step 48: 9306 + 198 = 9504
Step 49: 9504 + 198 = 9702
Step 50: 9702 + 198 = 9900
Step 51: 9900 + 198 = 10098
Step 52: 10098 + 198 = 10296
Step 53: 10296 + 198 = 10494
Step 54: 10494 + 198 = 10692
Step 55: 10692 + 198 = 10890
Step 56: 10890 + 198 = 11088
Step 57: 11088 + 198 = 11286
Step 58: 11286 + 198 = 11484
Step 59: 11484 + 198 = 11682
Step 60: 11682 + 198 = 11880
Step 61: 11880 + 198 = 12078
Step 62: 12078 + 198 = 12276
Step 63: 12276 + 198 = 12474
Step 64: 12474 + 198 = 12672
Step 65: 12672 + 198 = 12870
Step 66: 12870 + 198 = 13068
Step 67: 13068 + 198 = 13266
Step 68: 13266 + 198 = 13464
Step 69: 13464 + 198 = 13662
Step 70: 13662 + 198 = 13860
Step 71: 13860 + 198 = 14058
Step 72: 14058 + 198 = 14256
Step 73: 14256 + 198 = 14454
Step 74: 14454 + 198 = 14652
Step 75: 14652 + 198 = 14850
Step 76: 14850 + 198 = 15048
Step 77: 15048 + 198 = 15246
Step 78: 15246 + 198 = 15444
Step 79: 15444 + 198 = 15642
Step 80: 15642 + 198 = 15840
Step 81: 15840 + 198 = 16038
Step 82: 16038 + 198 = 16236
Step 83: 16236 + 198 = 16434
Step 84: 16434 + 198 = 16632
Step 85: 16632 + 198 = 16830
Step 86: 16830 + 198 = 17028
Step 87: 17028 + 198 = 17226
Step 88: 17226 + 198 = 17424
Step 89: 17424 + 198 = 17622
Step 90: 17622 + 198 = 17820
Step 91: 17820 + 198 = 18018
Step 92: 18018 + 198 = 18216
Step 93: 18216 + 198 = 18414
Step 94: 18414 + 198 = 18612
Step 95: 18612 + 198 = 18810
Step 96: 18810 + 198 = 19008
Step 97: 19008 + 198 = 19206
Step 98: 19206 + 198 = 19404
Step 99: 19404 + 198 = 19602
Step 100: 19602 + 198 = 19800
Step 101: 19800 + 198 = 19998
Step 102: 19998 + 198 = 20196
Step 103: 20196 + 198 = 20394
Step 104: 20394 + 198 = 20592
Step 105: 20592 + 198 = 20790
Step 106: 20790 + 198 = 20988
Step 107: 20988 + 198 = 21186
Step 108: 21186 + 198 = 21384
Step 109: 21384 + 198 = 21582
Step 110: 21582 + 198 = 21780
Step 111: 21780 + 198 = 21978
Step 112: 21978 + 198 = 22176
Step 113: 22176 + 198 = 22374
Step 114: 22374 + 198 = 22572
Step 115: 22572 + 198 = 22770
Step 116: 22770 + 198 = 22968
Step 117: 22968 + 198 = 23166
Step 118: 23166 + 198 = 23364
Step 119: 23364 + 198 = 23562
Step 120: 23562 + 198 = 23760
Step 121: 23760 + 198 = 23958
Step 122: 23958 + 198 = 24156
Step 123: 24156 + 198 = 24354
Step 124: 24354 + 198 = 24552
Step 125: 24552 + 198 = 24750
Step 126: 24750 + 198 = 24948
Step 127: 24948 + 198 = 25146
Step 128: 25146 + 198 = 25344
Step 129: 25344 + 198 = 25542
Step 130: 25542 + 198 = 25740
Step 131: 25740 + 198 = 25938
Step 132: 25938 + 198 = 26136
Step 133: 26136 + 198 = 26334
Step 134: 26334 + 198 = 26532
Step 135: 26532 + 198 = 26730
Step 136: 26730 + 198 = 26928
Step 137: 26928 + 198 = 27126
Step 138: 27126 + 198 = 27324
Step 139: 27324 + 198 = 27522
Step 140: 27522 + 198 = 27720
Step 141: 27720 + 198 = 27918
Step 142: 27918 + 198 = 28116
Step 143: 28116 + 198 = 28314

So, 198*143 = 28314