Without delay, let's solve this. We've got 497 and we will be multiplying it by 400, that is, adding 497 to itself 400 times.
Step 1: 0 + 497 = 497
Step 2: 497 + 497 = 994
Step 3: 994 + 497 = 1491
Step 4: 1491 + 497 = 1988
Step 5: 1988 + 497 = 2485
Step 6: 2485 + 497 = 2982
Step 7: 2982 + 497 = 3479
Step 8: 3479 + 497 = 3976
Step 9: 3976 + 497 = 4473
Step 10: 4473 + 497 = 4970
Step 11: 4970 + 497 = 5467
Step 12: 5467 + 497 = 5964
Step 13: 5964 + 497 = 6461
Step 14: 6461 + 497 = 6958
Step 15: 6958 + 497 = 7455
Step 16: 7455 + 497 = 7952
Step 17: 7952 + 497 = 8449
Step 18: 8449 + 497 = 8946
Step 19: 8946 + 497 = 9443
Step 20: 9443 + 497 = 9940
Step 21: 9940 + 497 = 10437
Step 22: 10437 + 497 = 10934
Step 23: 10934 + 497 = 11431
Step 24: 11431 + 497 = 11928
Step 25: 11928 + 497 = 12425
Step 26: 12425 + 497 = 12922
Step 27: 12922 + 497 = 13419
Step 28: 13419 + 497 = 13916
Step 29: 13916 + 497 = 14413
Step 30: 14413 + 497 = 14910
Step 31: 14910 + 497 = 15407
Step 32: 15407 + 497 = 15904
Step 33: 15904 + 497 = 16401
Step 34: 16401 + 497 = 16898
Step 35: 16898 + 497 = 17395
Step 36: 17395 + 497 = 17892
Step 37: 17892 + 497 = 18389
Step 38: 18389 + 497 = 18886
Step 39: 18886 + 497 = 19383
Step 40: 19383 + 497 = 19880
Step 41: 19880 + 497 = 20377
Step 42: 20377 + 497 = 20874
Step 43: 20874 + 497 = 21371
Step 44: 21371 + 497 = 21868
Step 45: 21868 + 497 = 22365
Step 46: 22365 + 497 = 22862
Step 47: 22862 + 497 = 23359
Step 48: 23359 + 497 = 23856
Step 49: 23856 + 497 = 24353
Step 50: 24353 + 497 = 24850
Step 51: 24850 + 497 = 25347
Step 52: 25347 + 497 = 25844
Step 53: 25844 + 497 = 26341
Step 54: 26341 + 497 = 26838
Step 55: 26838 + 497 = 27335
Step 56: 27335 + 497 = 27832
Step 57: 27832 + 497 = 28329
Step 58: 28329 + 497 = 28826
Step 59: 28826 + 497 = 29323
Step 60: 29323 + 497 = 29820
Step 61: 29820 + 497 = 30317
Step 62: 30317 + 497 = 30814
Step 63: 30814 + 497 = 31311
Step 64: 31311 + 497 = 31808
Step 65: 31808 + 497 = 32305
Step 66: 32305 + 497 = 32802
Step 67: 32802 + 497 = 33299
Step 68: 33299 + 497 = 33796
Step 69: 33796 + 497 = 34293
Step 70: 34293 + 497 = 34790
Step 71: 34790 + 497 = 35287
Step 72: 35287 + 497 = 35784
Step 73: 35784 + 497 = 36281
Step 74: 36281 + 497 = 36778
Step 75: 36778 + 497 = 37275
Step 76: 37275 + 497 = 37772
Step 77: 37772 + 497 = 38269
Step 78: 38269 + 497 = 38766
Step 79: 38766 + 497 = 39263
Step 80: 39263 + 497 = 39760
Step 81: 39760 + 497 = 40257
Step 82: 40257 + 497 = 40754
Step 83: 40754 + 497 = 41251
Step 84: 41251 + 497 = 41748
Step 85: 41748 + 497 = 42245
Step 86: 42245 + 497 = 42742
Step 87: 42742 + 497 = 43239
Step 88: 43239 + 497 = 43736
Step 89: 43736 + 497 = 44233
Step 90: 44233 + 497 = 44730
Step 91: 44730 + 497 = 45227
Step 92: 45227 + 497 = 45724
Step 93: 45724 + 497 = 46221
Step 94: 46221 + 497 = 46718
Step 95: 46718 + 497 = 47215
Step 96: 47215 + 497 = 47712
Step 97: 47712 + 497 = 48209
Step 98: 48209 + 497 = 48706
Step 99: 48706 + 497 = 49203
Step 100: 49203 + 497 = 49700
Step 101: 49700 + 497 = 50197
Step 102: 50197 + 497 = 50694
Step 103: 50694 + 497 = 51191
Step 104: 51191 + 497 = 51688
Step 105: 51688 + 497 = 52185
Step 106: 52185 + 497 = 52682
Step 107: 52682 + 497 = 53179
Step 108: 53179 + 497 = 53676
Step 109: 53676 + 497 = 54173
Step 110: 54173 + 497 = 54670
Step 111: 54670 + 497 = 55167
Step 112: 55167 + 497 = 55664
Step 113: 55664 + 497 = 56161
Step 114: 56161 + 497 = 56658
Step 115: 56658 + 497 = 57155
Step 116: 57155 + 497 = 57652
Step 117: 57652 + 497 = 58149
Step 118: 58149 + 497 = 58646
Step 119: 58646 + 497 = 59143
Step 120: 59143 + 497 = 59640
Step 121: 59640 + 497 = 60137
Step 122: 60137 + 497 = 60634
Step 123: 60634 + 497 = 61131
Step 124: 61131 + 497 = 61628
Step 125: 61628 + 497 = 62125
Step 126: 62125 + 497 = 62622
Step 127: 62622 + 497 = 63119
Step 128: 63119 + 497 = 63616
Step 129: 63616 + 497 = 64113
Step 130: 64113 + 497 = 64610
Step 131: 64610 + 497 = 65107
Step 132: 65107 + 497 = 65604
Step 133: 65604 + 497 = 66101
Step 134: 66101 + 497 = 66598
Step 135: 66598 + 497 = 67095
Step 136: 67095 + 497 = 67592
Step 137: 67592 + 497 = 68089
Step 138: 68089 + 497 = 68586
Step 139: 68586 + 497 = 69083
Step 140: 69083 + 497 = 69580
Step 141: 69580 + 497 = 70077
Step 142: 70077 + 497 = 70574
Step 143: 70574 + 497 = 71071
Step 144: 71071 + 497 = 71568
Step 145: 71568 + 497 = 72065
Step 146: 72065 + 497 = 72562
Step 147: 72562 + 497 = 73059
Step 148: 73059 + 497 = 73556
Step 149: 73556 + 497 = 74053
Step 150: 74053 + 497 = 74550
Step 151: 74550 + 497 = 75047
Step 152: 75047 + 497 = 75544
Step 153: 75544 + 497 = 76041
Step 154: 76041 + 497 = 76538
Step 155: 76538 + 497 = 77035
Step 156: 77035 + 497 = 77532
Step 157: 77532 + 497 = 78029
Step 158: 78029 + 497 = 78526
Step 159: 78526 + 497 = 79023
Step 160: 79023 + 497 = 79520
Step 161: 79520 + 497 = 80017
Step 162: 80017 + 497 = 80514
Step 163: 80514 + 497 = 81011
Step 164: 81011 + 497 = 81508
Step 165: 81508 + 497 = 82005
Step 166: 82005 + 497 = 82502
Step 167: 82502 + 497 = 82999
Step 168: 82999 + 497 = 83496
Step 169: 83496 + 497 = 83993
Step 170: 83993 + 497 = 84490
Step 171: 84490 + 497 = 84987
Step 172: 84987 + 497 = 85484
Step 173: 85484 + 497 = 85981
Step 174: 85981 + 497 = 86478
Step 175: 86478 + 497 = 86975
Step 176: 86975 + 497 = 87472
Step 177: 87472 + 497 = 87969
Step 178: 87969 + 497 = 88466
Step 179: 88466 + 497 = 88963
Step 180: 88963 + 497 = 89460
Step 181: 89460 + 497 = 89957
Step 182: 89957 + 497 = 90454
Step 183: 90454 + 497 = 90951
Step 184: 90951 + 497 = 91448
Step 185: 91448 + 497 = 91945
Step 186: 91945 + 497 = 92442
Step 187: 92442 + 497 = 92939
Step 188: 92939 + 497 = 93436
Step 189: 93436 + 497 = 93933
Step 190: 93933 + 497 = 94430
Step 191: 94430 + 497 = 94927
Step 192: 94927 + 497 = 95424
Step 193: 95424 + 497 = 95921
Step 194: 95921 + 497 = 96418
Step 195: 96418 + 497 = 96915
Step 196: 96915 + 497 = 97412
Step 197: 97412 + 497 = 97909
Step 198: 97909 + 497 = 98406
Step 199: 98406 + 497 = 98903
Step 200: 98903 + 497 = 99400
Step 201: 99400 + 497 = 99897
Step 202: 99897 + 497 = 100394
Step 203: 100394 + 497 = 100891
Step 204: 100891 + 497 = 101388
Step 205: 101388 + 497 = 101885
Step 206: 101885 + 497 = 102382
Step 207: 102382 + 497 = 102879
Step 208: 102879 + 497 = 103376
Step 209: 103376 + 497 = 103873
Step 210: 103873 + 497 = 104370
Step 211: 104370 + 497 = 104867
Step 212: 104867 + 497 = 105364
Step 213: 105364 + 497 = 105861
Step 214: 105861 + 497 = 106358
Step 215: 106358 + 497 = 106855
Step 216: 106855 + 497 = 107352
Step 217: 107352 + 497 = 107849
Step 218: 107849 + 497 = 108346
Step 219: 108346 + 497 = 108843
Step 220: 108843 + 497 = 109340
Step 221: 109340 + 497 = 109837
Step 222: 109837 + 497 = 110334
Step 223: 110334 + 497 = 110831
Step 224: 110831 + 497 = 111328
Step 225: 111328 + 497 = 111825
Step 226: 111825 + 497 = 112322
Step 227: 112322 + 497 = 112819
Step 228: 112819 + 497 = 113316
Step 229: 113316 + 497 = 113813
Step 230: 113813 + 497 = 114310
Step 231: 114310 + 497 = 114807
Step 232: 114807 + 497 = 115304
Step 233: 115304 + 497 = 115801
Step 234: 115801 + 497 = 116298
Step 235: 116298 + 497 = 116795
Step 236: 116795 + 497 = 117292
Step 237: 117292 + 497 = 117789
Step 238: 117789 + 497 = 118286
Step 239: 118286 + 497 = 118783
Step 240: 118783 + 497 = 119280
Step 241: 119280 + 497 = 119777
Step 242: 119777 + 497 = 120274
Step 243: 120274 + 497 = 120771
Step 244: 120771 + 497 = 121268
Step 245: 121268 + 497 = 121765
Step 246: 121765 + 497 = 122262
Step 247: 122262 + 497 = 122759
Step 248: 122759 + 497 = 123256
Step 249: 123256 + 497 = 123753
Step 250: 123753 + 497 = 124250
Step 251: 124250 + 497 = 124747
Step 252: 124747 + 497 = 125244
Step 253: 125244 + 497 = 125741
Step 254: 125741 + 497 = 126238
Step 255: 126238 + 497 = 126735
Step 256: 126735 + 497 = 127232
Step 257: 127232 + 497 = 127729
Step 258: 127729 + 497 = 128226
Step 259: 128226 + 497 = 128723
Step 260: 128723 + 497 = 129220
Step 261: 129220 + 497 = 129717
Step 262: 129717 + 497 = 130214
Step 263: 130214 + 497 = 130711
Step 264: 130711 + 497 = 131208
Step 265: 131208 + 497 = 131705
Step 266: 131705 + 497 = 132202
Step 267: 132202 + 497 = 132699
Step 268: 132699 + 497 = 133196
Step 269: 133196 + 497 = 133693
Step 270: 133693 + 497 = 134190
Step 271: 134190 + 497 = 134687
Step 272: 134687 + 497 = 135184
Step 273: 135184 + 497 = 135681
Step 274: 135681 + 497 = 136178
Step 275: 136178 + 497 = 136675
Step 276: 136675 + 497 = 137172
Step 277: 137172 + 497 = 137669
Step 278: 137669 + 497 = 138166
Step 279: 138166 + 497 = 138663
Step 280: 138663 + 497 = 139160
Step 281: 139160 + 497 = 139657
Step 282: 139657 + 497 = 140154
Step 283: 140154 + 497 = 140651
Step 284: 140651 + 497 = 141148
Step 285: 141148 + 497 = 141645
Step 286: 141645 + 497 = 142142
Step 287: 142142 + 497 = 142639
Step 288: 142639 + 497 = 143136
Step 289: 143136 + 497 = 143633
Step 290: 143633 + 497 = 144130
Step 291: 144130 + 497 = 144627
Step 292: 144627 + 497 = 145124
Step 293: 145124 + 497 = 145621
Step 294: 145621 + 497 = 146118
Step 295: 146118 + 497 = 146615
Step 296: 146615 + 497 = 147112
Step 297: 147112 + 497 = 147609
Step 298: 147609 + 497 = 148106
Step 299: 148106 + 497 = 148603
Step 300: 148603 + 497 = 149100
Step 301: 149100 + 497 = 149597
Step 302: 149597 + 497 = 150094
Step 303: 150094 + 497 = 150591
Step 304: 150591 + 497 = 151088
Step 305: 151088 + 497 = 151585
Step 306: 151585 + 497 = 152082
Step 307: 152082 + 497 = 152579
Step 308: 152579 + 497 = 153076
Step 309: 153076 + 497 = 153573
Step 310: 153573 + 497 = 154070
Step 311: 154070 + 497 = 154567
Step 312: 154567 + 497 = 155064
Step 313: 155064 + 497 = 155561
Step 314: 155561 + 497 = 156058
Step 315: 156058 + 497 = 156555
Step 316: 156555 + 497 = 157052
Step 317: 157052 + 497 = 157549
Step 318: 157549 + 497 = 158046
Step 319: 158046 + 497 = 158543
Step 320: 158543 + 497 = 159040
Step 321: 159040 + 497 = 159537
Step 322: 159537 + 497 = 160034
Step 323: 160034 + 497 = 160531
Step 324: 160531 + 497 = 161028
Step 325: 161028 + 497 = 161525
Step 326: 161525 + 497 = 162022
Step 327: 162022 + 497 = 162519
Step 328: 162519 + 497 = 163016
Step 329: 163016 + 497 = 163513
Step 330: 163513 + 497 = 164010
Step 331: 164010 + 497 = 164507
Step 332: 164507 + 497 = 165004
Step 333: 165004 + 497 = 165501
Step 334: 165501 + 497 = 165998
Step 335: 165998 + 497 = 166495
Step 336: 166495 + 497 = 166992
Step 337: 166992 + 497 = 167489
Step 338: 167489 + 497 = 167986
Step 339: 167986 + 497 = 168483
Step 340: 168483 + 497 = 168980
Step 341: 168980 + 497 = 169477
Step 342: 169477 + 497 = 169974
Step 343: 169974 + 497 = 170471
Step 344: 170471 + 497 = 170968
Step 345: 170968 + 497 = 171465
Step 346: 171465 + 497 = 171962
Step 347: 171962 + 497 = 172459
Step 348: 172459 + 497 = 172956
Step 349: 172956 + 497 = 173453
Step 350: 173453 + 497 = 173950
Step 351: 173950 + 497 = 174447
Step 352: 174447 + 497 = 174944
Step 353: 174944 + 497 = 175441
Step 354: 175441 + 497 = 175938
Step 355: 175938 + 497 = 176435
Step 356: 176435 + 497 = 176932
Step 357: 176932 + 497 = 177429
Step 358: 177429 + 497 = 177926
Step 359: 177926 + 497 = 178423
Step 360: 178423 + 497 = 178920
Step 361: 178920 + 497 = 179417
Step 362: 179417 + 497 = 179914
Step 363: 179914 + 497 = 180411
Step 364: 180411 + 497 = 180908
Step 365: 180908 + 497 = 181405
Step 366: 181405 + 497 = 181902
Step 367: 181902 + 497 = 182399
Step 368: 182399 + 497 = 182896
Step 369: 182896 + 497 = 183393
Step 370: 183393 + 497 = 183890
Step 371: 183890 + 497 = 184387
Step 372: 184387 + 497 = 184884
Step 373: 184884 + 497 = 185381
Step 374: 185381 + 497 = 185878
Step 375: 185878 + 497 = 186375
Step 376: 186375 + 497 = 186872
Step 377: 186872 + 497 = 187369
Step 378: 187369 + 497 = 187866
Step 379: 187866 + 497 = 188363
Step 380: 188363 + 497 = 188860
Step 381: 188860 + 497 = 189357
Step 382: 189357 + 497 = 189854
Step 383: 189854 + 497 = 190351
Step 384: 190351 + 497 = 190848
Step 385: 190848 + 497 = 191345
Step 386: 191345 + 497 = 191842
Step 387: 191842 + 497 = 192339
Step 388: 192339 + 497 = 192836
Step 389: 192836 + 497 = 193333
Step 390: 193333 + 497 = 193830
Step 391: 193830 + 497 = 194327
Step 392: 194327 + 497 = 194824
Step 393: 194824 + 497 = 195321
Step 394: 195321 + 497 = 195818
Step 395: 195818 + 497 = 196315
Step 396: 196315 + 497 = 196812
Step 397: 196812 + 497 = 197309
Step 398: 197309 + 497 = 197806
Step 399: 197806 + 497 = 198303
Step 400: 198303 + 497 = 198800

So, 497*400 = 198800