OK, let's work through this together. We're starting with 398 and we're going to multiply it by 433, which means we add 398 to itself 433 times.
Step 1: 0 + 398 = 398
Step 2: 398 + 398 = 796
Step 3: 796 + 398 = 1194
Step 4: 1194 + 398 = 1592
Step 5: 1592 + 398 = 1990
Step 6: 1990 + 398 = 2388
Step 7: 2388 + 398 = 2786
Step 8: 2786 + 398 = 3184
Step 9: 3184 + 398 = 3582
Step 10: 3582 + 398 = 3980
Step 11: 3980 + 398 = 4378
Step 12: 4378 + 398 = 4776
Step 13: 4776 + 398 = 5174
Step 14: 5174 + 398 = 5572
Step 15: 5572 + 398 = 5970
Step 16: 5970 + 398 = 6368
Step 17: 6368 + 398 = 6766
Step 18: 6766 + 398 = 7164
Step 19: 7164 + 398 = 7562
Step 20: 7562 + 398 = 7960
Step 21: 7960 + 398 = 8358
Step 22: 8358 + 398 = 8756
Step 23: 8756 + 398 = 9154
Step 24: 9154 + 398 = 9552
Step 25: 9552 + 398 = 9950
Step 26: 9950 + 398 = 10348
Step 27: 10348 + 398 = 10746
Step 28: 10746 + 398 = 11144
Step 29: 11144 + 398 = 11542
Step 30: 11542 + 398 = 11940
Step 31: 11940 + 398 = 12338
Step 32: 12338 + 398 = 12736
Step 33: 12736 + 398 = 13134
Step 34: 13134 + 398 = 13532
Step 35: 13532 + 398 = 13930
Step 36: 13930 + 398 = 14328
Step 37: 14328 + 398 = 14726
Step 38: 14726 + 398 = 15124
Step 39: 15124 + 398 = 15522
Step 40: 15522 + 398 = 15920
Step 41: 15920 + 398 = 16318
Step 42: 16318 + 398 = 16716
Step 43: 16716 + 398 = 17114
Step 44: 17114 + 398 = 17512
Step 45: 17512 + 398 = 17910
Step 46: 17910 + 398 = 18308
Step 47: 18308 + 398 = 18706
Step 48: 18706 + 398 = 19104
Step 49: 19104 + 398 = 19502
Step 50: 19502 + 398 = 19900
Step 51: 19900 + 398 = 20298
Step 52: 20298 + 398 = 20696
Step 53: 20696 + 398 = 21094
Step 54: 21094 + 398 = 21492
Step 55: 21492 + 398 = 21890
Step 56: 21890 + 398 = 22288
Step 57: 22288 + 398 = 22686
Step 58: 22686 + 398 = 23084
Step 59: 23084 + 398 = 23482
Step 60: 23482 + 398 = 23880
Step 61: 23880 + 398 = 24278
Step 62: 24278 + 398 = 24676
Step 63: 24676 + 398 = 25074
Step 64: 25074 + 398 = 25472
Step 65: 25472 + 398 = 25870
Step 66: 25870 + 398 = 26268
Step 67: 26268 + 398 = 26666
Step 68: 26666 + 398 = 27064
Step 69: 27064 + 398 = 27462
Step 70: 27462 + 398 = 27860
Step 71: 27860 + 398 = 28258
Step 72: 28258 + 398 = 28656
Step 73: 28656 + 398 = 29054
Step 74: 29054 + 398 = 29452
Step 75: 29452 + 398 = 29850
Step 76: 29850 + 398 = 30248
Step 77: 30248 + 398 = 30646
Step 78: 30646 + 398 = 31044
Step 79: 31044 + 398 = 31442
Step 80: 31442 + 398 = 31840
Step 81: 31840 + 398 = 32238
Step 82: 32238 + 398 = 32636
Step 83: 32636 + 398 = 33034
Step 84: 33034 + 398 = 33432
Step 85: 33432 + 398 = 33830
Step 86: 33830 + 398 = 34228
Step 87: 34228 + 398 = 34626
Step 88: 34626 + 398 = 35024
Step 89: 35024 + 398 = 35422
Step 90: 35422 + 398 = 35820
Step 91: 35820 + 398 = 36218
Step 92: 36218 + 398 = 36616
Step 93: 36616 + 398 = 37014
Step 94: 37014 + 398 = 37412
Step 95: 37412 + 398 = 37810
Step 96: 37810 + 398 = 38208
Step 97: 38208 + 398 = 38606
Step 98: 38606 + 398 = 39004
Step 99: 39004 + 398 = 39402
Step 100: 39402 + 398 = 39800
Step 101: 39800 + 398 = 40198
Step 102: 40198 + 398 = 40596
Step 103: 40596 + 398 = 40994
Step 104: 40994 + 398 = 41392
Step 105: 41392 + 398 = 41790
Step 106: 41790 + 398 = 42188
Step 107: 42188 + 398 = 42586
Step 108: 42586 + 398 = 42984
Step 109: 42984 + 398 = 43382
Step 110: 43382 + 398 = 43780
Step 111: 43780 + 398 = 44178
Step 112: 44178 + 398 = 44576
Step 113: 44576 + 398 = 44974
Step 114: 44974 + 398 = 45372
Step 115: 45372 + 398 = 45770
Step 116: 45770 + 398 = 46168
Step 117: 46168 + 398 = 46566
Step 118: 46566 + 398 = 46964
Step 119: 46964 + 398 = 47362
Step 120: 47362 + 398 = 47760
Step 121: 47760 + 398 = 48158
Step 122: 48158 + 398 = 48556
Step 123: 48556 + 398 = 48954
Step 124: 48954 + 398 = 49352
Step 125: 49352 + 398 = 49750
Step 126: 49750 + 398 = 50148
Step 127: 50148 + 398 = 50546
Step 128: 50546 + 398 = 50944
Step 129: 50944 + 398 = 51342
Step 130: 51342 + 398 = 51740
Step 131: 51740 + 398 = 52138
Step 132: 52138 + 398 = 52536
Step 133: 52536 + 398 = 52934
Step 134: 52934 + 398 = 53332
Step 135: 53332 + 398 = 53730
Step 136: 53730 + 398 = 54128
Step 137: 54128 + 398 = 54526
Step 138: 54526 + 398 = 54924
Step 139: 54924 + 398 = 55322
Step 140: 55322 + 398 = 55720
Step 141: 55720 + 398 = 56118
Step 142: 56118 + 398 = 56516
Step 143: 56516 + 398 = 56914
Step 144: 56914 + 398 = 57312
Step 145: 57312 + 398 = 57710
Step 146: 57710 + 398 = 58108
Step 147: 58108 + 398 = 58506
Step 148: 58506 + 398 = 58904
Step 149: 58904 + 398 = 59302
Step 150: 59302 + 398 = 59700
Step 151: 59700 + 398 = 60098
Step 152: 60098 + 398 = 60496
Step 153: 60496 + 398 = 60894
Step 154: 60894 + 398 = 61292
Step 155: 61292 + 398 = 61690
Step 156: 61690 + 398 = 62088
Step 157: 62088 + 398 = 62486
Step 158: 62486 + 398 = 62884
Step 159: 62884 + 398 = 63282
Step 160: 63282 + 398 = 63680
Step 161: 63680 + 398 = 64078
Step 162: 64078 + 398 = 64476
Step 163: 64476 + 398 = 64874
Step 164: 64874 + 398 = 65272
Step 165: 65272 + 398 = 65670
Step 166: 65670 + 398 = 66068
Step 167: 66068 + 398 = 66466
Step 168: 66466 + 398 = 66864
Step 169: 66864 + 398 = 67262
Step 170: 67262 + 398 = 67660
Step 171: 67660 + 398 = 68058
Step 172: 68058 + 398 = 68456
Step 173: 68456 + 398 = 68854
Step 174: 68854 + 398 = 69252
Step 175: 69252 + 398 = 69650
Step 176: 69650 + 398 = 70048
Step 177: 70048 + 398 = 70446
Step 178: 70446 + 398 = 70844
Step 179: 70844 + 398 = 71242
Step 180: 71242 + 398 = 71640
Step 181: 71640 + 398 = 72038
Step 182: 72038 + 398 = 72436
Step 183: 72436 + 398 = 72834
Step 184: 72834 + 398 = 73232
Step 185: 73232 + 398 = 73630
Step 186: 73630 + 398 = 74028
Step 187: 74028 + 398 = 74426
Step 188: 74426 + 398 = 74824
Step 189: 74824 + 398 = 75222
Step 190: 75222 + 398 = 75620
Step 191: 75620 + 398 = 76018
Step 192: 76018 + 398 = 76416
Step 193: 76416 + 398 = 76814
Step 194: 76814 + 398 = 77212
Step 195: 77212 + 398 = 77610
Step 196: 77610 + 398 = 78008
Step 197: 78008 + 398 = 78406
Step 198: 78406 + 398 = 78804
Step 199: 78804 + 398 = 79202
Step 200: 79202 + 398 = 79600
Step 201: 79600 + 398 = 79998
Step 202: 79998 + 398 = 80396
Step 203: 80396 + 398 = 80794
Step 204: 80794 + 398 = 81192
Step 205: 81192 + 398 = 81590
Step 206: 81590 + 398 = 81988
Step 207: 81988 + 398 = 82386
Step 208: 82386 + 398 = 82784
Step 209: 82784 + 398 = 83182
Step 210: 83182 + 398 = 83580
Step 211: 83580 + 398 = 83978
Step 212: 83978 + 398 = 84376
Step 213: 84376 + 398 = 84774
Step 214: 84774 + 398 = 85172
Step 215: 85172 + 398 = 85570
Step 216: 85570 + 398 = 85968
Step 217: 85968 + 398 = 86366
Step 218: 86366 + 398 = 86764
Step 219: 86764 + 398 = 87162
Step 220: 87162 + 398 = 87560
Step 221: 87560 + 398 = 87958
Step 222: 87958 + 398 = 88356
Step 223: 88356 + 398 = 88754
Step 224: 88754 + 398 = 89152
Step 225: 89152 + 398 = 89550
Step 226: 89550 + 398 = 89948
Step 227: 89948 + 398 = 90346
Step 228: 90346 + 398 = 90744
Step 229: 90744 + 398 = 91142
Step 230: 91142 + 398 = 91540
Step 231: 91540 + 398 = 91938
Step 232: 91938 + 398 = 92336
Step 233: 92336 + 398 = 92734
Step 234: 92734 + 398 = 93132
Step 235: 93132 + 398 = 93530
Step 236: 93530 + 398 = 93928
Step 237: 93928 + 398 = 94326
Step 238: 94326 + 398 = 94724
Step 239: 94724 + 398 = 95122
Step 240: 95122 + 398 = 95520
Step 241: 95520 + 398 = 95918
Step 242: 95918 + 398 = 96316
Step 243: 96316 + 398 = 96714
Step 244: 96714 + 398 = 97112
Step 245: 97112 + 398 = 97510
Step 246: 97510 + 398 = 97908
Step 247: 97908 + 398 = 98306
Step 248: 98306 + 398 = 98704
Step 249: 98704 + 398 = 99102
Step 250: 99102 + 398 = 99500
Step 251: 99500 + 398 = 99898
Step 252: 99898 + 398 = 100296
Step 253: 100296 + 398 = 100694
Step 254: 100694 + 398 = 101092
Step 255: 101092 + 398 = 101490
Step 256: 101490 + 398 = 101888
Step 257: 101888 + 398 = 102286
Step 258: 102286 + 398 = 102684
Step 259: 102684 + 398 = 103082
Step 260: 103082 + 398 = 103480
Step 261: 103480 + 398 = 103878
Step 262: 103878 + 398 = 104276
Step 263: 104276 + 398 = 104674
Step 264: 104674 + 398 = 105072
Step 265: 105072 + 398 = 105470
Step 266: 105470 + 398 = 105868
Step 267: 105868 + 398 = 106266
Step 268: 106266 + 398 = 106664
Step 269: 106664 + 398 = 107062
Step 270: 107062 + 398 = 107460
Step 271: 107460 + 398 = 107858
Step 272: 107858 + 398 = 108256
Step 273: 108256 + 398 = 108654
Step 274: 108654 + 398 = 109052
Step 275: 109052 + 398 = 109450
Step 276: 109450 + 398 = 109848
Step 277: 109848 + 398 = 110246
Step 278: 110246 + 398 = 110644
Step 279: 110644 + 398 = 111042
Step 280: 111042 + 398 = 111440
Step 281: 111440 + 398 = 111838
Step 282: 111838 + 398 = 112236
Step 283: 112236 + 398 = 112634
Step 284: 112634 + 398 = 113032
Step 285: 113032 + 398 = 113430
Step 286: 113430 + 398 = 113828
Step 287: 113828 + 398 = 114226
Step 288: 114226 + 398 = 114624
Step 289: 114624 + 398 = 115022
Step 290: 115022 + 398 = 115420
Step 291: 115420 + 398 = 115818
Step 292: 115818 + 398 = 116216
Step 293: 116216 + 398 = 116614
Step 294: 116614 + 398 = 117012
Step 295: 117012 + 398 = 117410
Step 296: 117410 + 398 = 117808
Step 297: 117808 + 398 = 118206
Step 298: 118206 + 398 = 118604
Step 299: 118604 + 398 = 119002
Step 300: 119002 + 398 = 119400
Step 301: 119400 + 398 = 119798
Step 302: 119798 + 398 = 120196
Step 303: 120196 + 398 = 120594
Step 304: 120594 + 398 = 120992
Step 305: 120992 + 398 = 121390
Step 306: 121390 + 398 = 121788
Step 307: 121788 + 398 = 122186
Step 308: 122186 + 398 = 122584
Step 309: 122584 + 398 = 122982
Step 310: 122982 + 398 = 123380
Step 311: 123380 + 398 = 123778
Step 312: 123778 + 398 = 124176
Step 313: 124176 + 398 = 124574
Step 314: 124574 + 398 = 124972
Step 315: 124972 + 398 = 125370
Step 316: 125370 + 398 = 125768
Step 317: 125768 + 398 = 126166
Step 318: 126166 + 398 = 126564
Step 319: 126564 + 398 = 126962
Step 320: 126962 + 398 = 127360
Step 321: 127360 + 398 = 127758
Step 322: 127758 + 398 = 128156
Step 323: 128156 + 398 = 128554
Step 324: 128554 + 398 = 128952
Step 325: 128952 + 398 = 129350
Step 326: 129350 + 398 = 129748
Step 327: 129748 + 398 = 130146
Step 328: 130146 + 398 = 130544
Step 329: 130544 + 398 = 130942
Step 330: 130942 + 398 = 131340
Step 331: 131340 + 398 = 131738
Step 332: 131738 + 398 = 132136
Step 333: 132136 + 398 = 132534
Step 334: 132534 + 398 = 132932
Step 335: 132932 + 398 = 133330
Step 336: 133330 + 398 = 133728
Step 337: 133728 + 398 = 134126
Step 338: 134126 + 398 = 134524
Step 339: 134524 + 398 = 134922
Step 340: 134922 + 398 = 135320
Step 341: 135320 + 398 = 135718
Step 342: 135718 + 398 = 136116
Step 343: 136116 + 398 = 136514
Step 344: 136514 + 398 = 136912
Step 345: 136912 + 398 = 137310
Step 346: 137310 + 398 = 137708
Step 347: 137708 + 398 = 138106
Step 348: 138106 + 398 = 138504
Step 349: 138504 + 398 = 138902
Step 350: 138902 + 398 = 139300
Step 351: 139300 + 398 = 139698
Step 352: 139698 + 398 = 140096
Step 353: 140096 + 398 = 140494
Step 354: 140494 + 398 = 140892
Step 355: 140892 + 398 = 141290
Step 356: 141290 + 398 = 141688
Step 357: 141688 + 398 = 142086
Step 358: 142086 + 398 = 142484
Step 359: 142484 + 398 = 142882
Step 360: 142882 + 398 = 143280
Step 361: 143280 + 398 = 143678
Step 362: 143678 + 398 = 144076
Step 363: 144076 + 398 = 144474
Step 364: 144474 + 398 = 144872
Step 365: 144872 + 398 = 145270
Step 366: 145270 + 398 = 145668
Step 367: 145668 + 398 = 146066
Step 368: 146066 + 398 = 146464
Step 369: 146464 + 398 = 146862
Step 370: 146862 + 398 = 147260
Step 371: 147260 + 398 = 147658
Step 372: 147658 + 398 = 148056
Step 373: 148056 + 398 = 148454
Step 374: 148454 + 398 = 148852
Step 375: 148852 + 398 = 149250
Step 376: 149250 + 398 = 149648
Step 377: 149648 + 398 = 150046
Step 378: 150046 + 398 = 150444
Step 379: 150444 + 398 = 150842
Step 380: 150842 + 398 = 151240
Step 381: 151240 + 398 = 151638
Step 382: 151638 + 398 = 152036
Step 383: 152036 + 398 = 152434
Step 384: 152434 + 398 = 152832
Step 385: 152832 + 398 = 153230
Step 386: 153230 + 398 = 153628
Step 387: 153628 + 398 = 154026
Step 388: 154026 + 398 = 154424
Step 389: 154424 + 398 = 154822
Step 390: 154822 + 398 = 155220
Step 391: 155220 + 398 = 155618
Step 392: 155618 + 398 = 156016
Step 393: 156016 + 398 = 156414
Step 394: 156414 + 398 = 156812
Step 395: 156812 + 398 = 157210
Step 396: 157210 + 398 = 157608
Step 397: 157608 + 398 = 158006
Step 398: 158006 + 398 = 158404
Step 399: 158404 + 398 = 158802
Step 400: 158802 + 398 = 159200
Step 401: 159200 + 398 = 159598
Step 402: 159598 + 398 = 159996
Step 403: 159996 + 398 = 160394
Step 404: 160394 + 398 = 160792
Step 405: 160792 + 398 = 161190
Step 406: 161190 + 398 = 161588
Step 407: 161588 + 398 = 161986
Step 408: 161986 + 398 = 162384
Step 409: 162384 + 398 = 162782
Step 410: 162782 + 398 = 163180
Step 411: 163180 + 398 = 163578
Step 412: 163578 + 398 = 163976
Step 413: 163976 + 398 = 164374
Step 414: 164374 + 398 = 164772
Step 415: 164772 + 398 = 165170
Step 416: 165170 + 398 = 165568
Step 417: 165568 + 398 = 165966
Step 418: 165966 + 398 = 166364
Step 419: 166364 + 398 = 166762
Step 420: 166762 + 398 = 167160
Step 421: 167160 + 398 = 167558
Step 422: 167558 + 398 = 167956
Step 423: 167956 + 398 = 168354
Step 424: 168354 + 398 = 168752
Step 425: 168752 + 398 = 169150
Step 426: 169150 + 398 = 169548
Step 427: 169548 + 398 = 169946
Step 428: 169946 + 398 = 170344
Step 429: 170344 + 398 = 170742
Step 430: 170742 + 398 = 171140
Step 431: 171140 + 398 = 171538
Step 432: 171538 + 398 = 171936
Step 433: 171936 + 398 = 172334

So, 398*433 = 172334