Alright, let's solve this math problem step by step. First, we have the number 773. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 420. So, we're going to take the number 773 and add it to itself 420 times.
Step 1: 0 + 773 = 773
Step 2: 773 + 773 = 1546
Step 3: 1546 + 773 = 2319
Step 4: 2319 + 773 = 3092
Step 5: 3092 + 773 = 3865
Step 6: 3865 + 773 = 4638
Step 7: 4638 + 773 = 5411
Step 8: 5411 + 773 = 6184
Step 9: 6184 + 773 = 6957
Step 10: 6957 + 773 = 7730
Step 11: 7730 + 773 = 8503
Step 12: 8503 + 773 = 9276
Step 13: 9276 + 773 = 10049
Step 14: 10049 + 773 = 10822
Step 15: 10822 + 773 = 11595
Step 16: 11595 + 773 = 12368
Step 17: 12368 + 773 = 13141
Step 18: 13141 + 773 = 13914
Step 19: 13914 + 773 = 14687
Step 20: 14687 + 773 = 15460
Step 21: 15460 + 773 = 16233
Step 22: 16233 + 773 = 17006
Step 23: 17006 + 773 = 17779
Step 24: 17779 + 773 = 18552
Step 25: 18552 + 773 = 19325
Step 26: 19325 + 773 = 20098
Step 27: 20098 + 773 = 20871
Step 28: 20871 + 773 = 21644
Step 29: 21644 + 773 = 22417
Step 30: 22417 + 773 = 23190
Step 31: 23190 + 773 = 23963
Step 32: 23963 + 773 = 24736
Step 33: 24736 + 773 = 25509
Step 34: 25509 + 773 = 26282
Step 35: 26282 + 773 = 27055
Step 36: 27055 + 773 = 27828
Step 37: 27828 + 773 = 28601
Step 38: 28601 + 773 = 29374
Step 39: 29374 + 773 = 30147
Step 40: 30147 + 773 = 30920
Step 41: 30920 + 773 = 31693
Step 42: 31693 + 773 = 32466
Step 43: 32466 + 773 = 33239
Step 44: 33239 + 773 = 34012
Step 45: 34012 + 773 = 34785
Step 46: 34785 + 773 = 35558
Step 47: 35558 + 773 = 36331
Step 48: 36331 + 773 = 37104
Step 49: 37104 + 773 = 37877
Step 50: 37877 + 773 = 38650
Step 51: 38650 + 773 = 39423
Step 52: 39423 + 773 = 40196
Step 53: 40196 + 773 = 40969
Step 54: 40969 + 773 = 41742
Step 55: 41742 + 773 = 42515
Step 56: 42515 + 773 = 43288
Step 57: 43288 + 773 = 44061
Step 58: 44061 + 773 = 44834
Step 59: 44834 + 773 = 45607
Step 60: 45607 + 773 = 46380
Step 61: 46380 + 773 = 47153
Step 62: 47153 + 773 = 47926
Step 63: 47926 + 773 = 48699
Step 64: 48699 + 773 = 49472
Step 65: 49472 + 773 = 50245
Step 66: 50245 + 773 = 51018
Step 67: 51018 + 773 = 51791
Step 68: 51791 + 773 = 52564
Step 69: 52564 + 773 = 53337
Step 70: 53337 + 773 = 54110
Step 71: 54110 + 773 = 54883
Step 72: 54883 + 773 = 55656
Step 73: 55656 + 773 = 56429
Step 74: 56429 + 773 = 57202
Step 75: 57202 + 773 = 57975
Step 76: 57975 + 773 = 58748
Step 77: 58748 + 773 = 59521
Step 78: 59521 + 773 = 60294
Step 79: 60294 + 773 = 61067
Step 80: 61067 + 773 = 61840
Step 81: 61840 + 773 = 62613
Step 82: 62613 + 773 = 63386
Step 83: 63386 + 773 = 64159
Step 84: 64159 + 773 = 64932
Step 85: 64932 + 773 = 65705
Step 86: 65705 + 773 = 66478
Step 87: 66478 + 773 = 67251
Step 88: 67251 + 773 = 68024
Step 89: 68024 + 773 = 68797
Step 90: 68797 + 773 = 69570
Step 91: 69570 + 773 = 70343
Step 92: 70343 + 773 = 71116
Step 93: 71116 + 773 = 71889
Step 94: 71889 + 773 = 72662
Step 95: 72662 + 773 = 73435
Step 96: 73435 + 773 = 74208
Step 97: 74208 + 773 = 74981
Step 98: 74981 + 773 = 75754
Step 99: 75754 + 773 = 76527
Step 100: 76527 + 773 = 77300
Step 101: 77300 + 773 = 78073
Step 102: 78073 + 773 = 78846
Step 103: 78846 + 773 = 79619
Step 104: 79619 + 773 = 80392
Step 105: 80392 + 773 = 81165
Step 106: 81165 + 773 = 81938
Step 107: 81938 + 773 = 82711
Step 108: 82711 + 773 = 83484
Step 109: 83484 + 773 = 84257
Step 110: 84257 + 773 = 85030
Step 111: 85030 + 773 = 85803
Step 112: 85803 + 773 = 86576
Step 113: 86576 + 773 = 87349
Step 114: 87349 + 773 = 88122
Step 115: 88122 + 773 = 88895
Step 116: 88895 + 773 = 89668
Step 117: 89668 + 773 = 90441
Step 118: 90441 + 773 = 91214
Step 119: 91214 + 773 = 91987
Step 120: 91987 + 773 = 92760
Step 121: 92760 + 773 = 93533
Step 122: 93533 + 773 = 94306
Step 123: 94306 + 773 = 95079
Step 124: 95079 + 773 = 95852
Step 125: 95852 + 773 = 96625
Step 126: 96625 + 773 = 97398
Step 127: 97398 + 773 = 98171
Step 128: 98171 + 773 = 98944
Step 129: 98944 + 773 = 99717
Step 130: 99717 + 773 = 100490
Step 131: 100490 + 773 = 101263
Step 132: 101263 + 773 = 102036
Step 133: 102036 + 773 = 102809
Step 134: 102809 + 773 = 103582
Step 135: 103582 + 773 = 104355
Step 136: 104355 + 773 = 105128
Step 137: 105128 + 773 = 105901
Step 138: 105901 + 773 = 106674
Step 139: 106674 + 773 = 107447
Step 140: 107447 + 773 = 108220
Step 141: 108220 + 773 = 108993
Step 142: 108993 + 773 = 109766
Step 143: 109766 + 773 = 110539
Step 144: 110539 + 773 = 111312
Step 145: 111312 + 773 = 112085
Step 146: 112085 + 773 = 112858
Step 147: 112858 + 773 = 113631
Step 148: 113631 + 773 = 114404
Step 149: 114404 + 773 = 115177
Step 150: 115177 + 773 = 115950
Step 151: 115950 + 773 = 116723
Step 152: 116723 + 773 = 117496
Step 153: 117496 + 773 = 118269
Step 154: 118269 + 773 = 119042
Step 155: 119042 + 773 = 119815
Step 156: 119815 + 773 = 120588
Step 157: 120588 + 773 = 121361
Step 158: 121361 + 773 = 122134
Step 159: 122134 + 773 = 122907
Step 160: 122907 + 773 = 123680
Step 161: 123680 + 773 = 124453
Step 162: 124453 + 773 = 125226
Step 163: 125226 + 773 = 125999
Step 164: 125999 + 773 = 126772
Step 165: 126772 + 773 = 127545
Step 166: 127545 + 773 = 128318
Step 167: 128318 + 773 = 129091
Step 168: 129091 + 773 = 129864
Step 169: 129864 + 773 = 130637
Step 170: 130637 + 773 = 131410
Step 171: 131410 + 773 = 132183
Step 172: 132183 + 773 = 132956
Step 173: 132956 + 773 = 133729
Step 174: 133729 + 773 = 134502
Step 175: 134502 + 773 = 135275
Step 176: 135275 + 773 = 136048
Step 177: 136048 + 773 = 136821
Step 178: 136821 + 773 = 137594
Step 179: 137594 + 773 = 138367
Step 180: 138367 + 773 = 139140
Step 181: 139140 + 773 = 139913
Step 182: 139913 + 773 = 140686
Step 183: 140686 + 773 = 141459
Step 184: 141459 + 773 = 142232
Step 185: 142232 + 773 = 143005
Step 186: 143005 + 773 = 143778
Step 187: 143778 + 773 = 144551
Step 188: 144551 + 773 = 145324
Step 189: 145324 + 773 = 146097
Step 190: 146097 + 773 = 146870
Step 191: 146870 + 773 = 147643
Step 192: 147643 + 773 = 148416
Step 193: 148416 + 773 = 149189
Step 194: 149189 + 773 = 149962
Step 195: 149962 + 773 = 150735
Step 196: 150735 + 773 = 151508
Step 197: 151508 + 773 = 152281
Step 198: 152281 + 773 = 153054
Step 199: 153054 + 773 = 153827
Step 200: 153827 + 773 = 154600
Step 201: 154600 + 773 = 155373
Step 202: 155373 + 773 = 156146
Step 203: 156146 + 773 = 156919
Step 204: 156919 + 773 = 157692
Step 205: 157692 + 773 = 158465
Step 206: 158465 + 773 = 159238
Step 207: 159238 + 773 = 160011
Step 208: 160011 + 773 = 160784
Step 209: 160784 + 773 = 161557
Step 210: 161557 + 773 = 162330
Step 211: 162330 + 773 = 163103
Step 212: 163103 + 773 = 163876
Step 213: 163876 + 773 = 164649
Step 214: 164649 + 773 = 165422
Step 215: 165422 + 773 = 166195
Step 216: 166195 + 773 = 166968
Step 217: 166968 + 773 = 167741
Step 218: 167741 + 773 = 168514
Step 219: 168514 + 773 = 169287
Step 220: 169287 + 773 = 170060
Step 221: 170060 + 773 = 170833
Step 222: 170833 + 773 = 171606
Step 223: 171606 + 773 = 172379
Step 224: 172379 + 773 = 173152
Step 225: 173152 + 773 = 173925
Step 226: 173925 + 773 = 174698
Step 227: 174698 + 773 = 175471
Step 228: 175471 + 773 = 176244
Step 229: 176244 + 773 = 177017
Step 230: 177017 + 773 = 177790
Step 231: 177790 + 773 = 178563
Step 232: 178563 + 773 = 179336
Step 233: 179336 + 773 = 180109
Step 234: 180109 + 773 = 180882
Step 235: 180882 + 773 = 181655
Step 236: 181655 + 773 = 182428
Step 237: 182428 + 773 = 183201
Step 238: 183201 + 773 = 183974
Step 239: 183974 + 773 = 184747
Step 240: 184747 + 773 = 185520
Step 241: 185520 + 773 = 186293
Step 242: 186293 + 773 = 187066
Step 243: 187066 + 773 = 187839
Step 244: 187839 + 773 = 188612
Step 245: 188612 + 773 = 189385
Step 246: 189385 + 773 = 190158
Step 247: 190158 + 773 = 190931
Step 248: 190931 + 773 = 191704
Step 249: 191704 + 773 = 192477
Step 250: 192477 + 773 = 193250
Step 251: 193250 + 773 = 194023
Step 252: 194023 + 773 = 194796
Step 253: 194796 + 773 = 195569
Step 254: 195569 + 773 = 196342
Step 255: 196342 + 773 = 197115
Step 256: 197115 + 773 = 197888
Step 257: 197888 + 773 = 198661
Step 258: 198661 + 773 = 199434
Step 259: 199434 + 773 = 200207
Step 260: 200207 + 773 = 200980
Step 261: 200980 + 773 = 201753
Step 262: 201753 + 773 = 202526
Step 263: 202526 + 773 = 203299
Step 264: 203299 + 773 = 204072
Step 265: 204072 + 773 = 204845
Step 266: 204845 + 773 = 205618
Step 267: 205618 + 773 = 206391
Step 268: 206391 + 773 = 207164
Step 269: 207164 + 773 = 207937
Step 270: 207937 + 773 = 208710
Step 271: 208710 + 773 = 209483
Step 272: 209483 + 773 = 210256
Step 273: 210256 + 773 = 211029
Step 274: 211029 + 773 = 211802
Step 275: 211802 + 773 = 212575
Step 276: 212575 + 773 = 213348
Step 277: 213348 + 773 = 214121
Step 278: 214121 + 773 = 214894
Step 279: 214894 + 773 = 215667
Step 280: 215667 + 773 = 216440
Step 281: 216440 + 773 = 217213
Step 282: 217213 + 773 = 217986
Step 283: 217986 + 773 = 218759
Step 284: 218759 + 773 = 219532
Step 285: 219532 + 773 = 220305
Step 286: 220305 + 773 = 221078
Step 287: 221078 + 773 = 221851
Step 288: 221851 + 773 = 222624
Step 289: 222624 + 773 = 223397
Step 290: 223397 + 773 = 224170
Step 291: 224170 + 773 = 224943
Step 292: 224943 + 773 = 225716
Step 293: 225716 + 773 = 226489
Step 294: 226489 + 773 = 227262
Step 295: 227262 + 773 = 228035
Step 296: 228035 + 773 = 228808
Step 297: 228808 + 773 = 229581
Step 298: 229581 + 773 = 230354
Step 299: 230354 + 773 = 231127
Step 300: 231127 + 773 = 231900
Step 301: 231900 + 773 = 232673
Step 302: 232673 + 773 = 233446
Step 303: 233446 + 773 = 234219
Step 304: 234219 + 773 = 234992
Step 305: 234992 + 773 = 235765
Step 306: 235765 + 773 = 236538
Step 307: 236538 + 773 = 237311
Step 308: 237311 + 773 = 238084
Step 309: 238084 + 773 = 238857
Step 310: 238857 + 773 = 239630
Step 311: 239630 + 773 = 240403
Step 312: 240403 + 773 = 241176
Step 313: 241176 + 773 = 241949
Step 314: 241949 + 773 = 242722
Step 315: 242722 + 773 = 243495
Step 316: 243495 + 773 = 244268
Step 317: 244268 + 773 = 245041
Step 318: 245041 + 773 = 245814
Step 319: 245814 + 773 = 246587
Step 320: 246587 + 773 = 247360
Step 321: 247360 + 773 = 248133
Step 322: 248133 + 773 = 248906
Step 323: 248906 + 773 = 249679
Step 324: 249679 + 773 = 250452
Step 325: 250452 + 773 = 251225
Step 326: 251225 + 773 = 251998
Step 327: 251998 + 773 = 252771
Step 328: 252771 + 773 = 253544
Step 329: 253544 + 773 = 254317
Step 330: 254317 + 773 = 255090
Step 331: 255090 + 773 = 255863
Step 332: 255863 + 773 = 256636
Step 333: 256636 + 773 = 257409
Step 334: 257409 + 773 = 258182
Step 335: 258182 + 773 = 258955
Step 336: 258955 + 773 = 259728
Step 337: 259728 + 773 = 260501
Step 338: 260501 + 773 = 261274
Step 339: 261274 + 773 = 262047
Step 340: 262047 + 773 = 262820
Step 341: 262820 + 773 = 263593
Step 342: 263593 + 773 = 264366
Step 343: 264366 + 773 = 265139
Step 344: 265139 + 773 = 265912
Step 345: 265912 + 773 = 266685
Step 346: 266685 + 773 = 267458
Step 347: 267458 + 773 = 268231
Step 348: 268231 + 773 = 269004
Step 349: 269004 + 773 = 269777
Step 350: 269777 + 773 = 270550
Step 351: 270550 + 773 = 271323
Step 352: 271323 + 773 = 272096
Step 353: 272096 + 773 = 272869
Step 354: 272869 + 773 = 273642
Step 355: 273642 + 773 = 274415
Step 356: 274415 + 773 = 275188
Step 357: 275188 + 773 = 275961
Step 358: 275961 + 773 = 276734
Step 359: 276734 + 773 = 277507
Step 360: 277507 + 773 = 278280
Step 361: 278280 + 773 = 279053
Step 362: 279053 + 773 = 279826
Step 363: 279826 + 773 = 280599
Step 364: 280599 + 773 = 281372
Step 365: 281372 + 773 = 282145
Step 366: 282145 + 773 = 282918
Step 367: 282918 + 773 = 283691
Step 368: 283691 + 773 = 284464
Step 369: 284464 + 773 = 285237
Step 370: 285237 + 773 = 286010
Step 371: 286010 + 773 = 286783
Step 372: 286783 + 773 = 287556
Step 373: 287556 + 773 = 288329
Step 374: 288329 + 773 = 289102
Step 375: 289102 + 773 = 289875
Step 376: 289875 + 773 = 290648
Step 377: 290648 + 773 = 291421
Step 378: 291421 + 773 = 292194
Step 379: 292194 + 773 = 292967
Step 380: 292967 + 773 = 293740
Step 381: 293740 + 773 = 294513
Step 382: 294513 + 773 = 295286
Step 383: 295286 + 773 = 296059
Step 384: 296059 + 773 = 296832
Step 385: 296832 + 773 = 297605
Step 386: 297605 + 773 = 298378
Step 387: 298378 + 773 = 299151
Step 388: 299151 + 773 = 299924
Step 389: 299924 + 773 = 300697
Step 390: 300697 + 773 = 301470
Step 391: 301470 + 773 = 302243
Step 392: 302243 + 773 = 303016
Step 393: 303016 + 773 = 303789
Step 394: 303789 + 773 = 304562
Step 395: 304562 + 773 = 305335
Step 396: 305335 + 773 = 306108
Step 397: 306108 + 773 = 306881
Step 398: 306881 + 773 = 307654
Step 399: 307654 + 773 = 308427
Step 400: 308427 + 773 = 309200
Step 401: 309200 + 773 = 309973
Step 402: 309973 + 773 = 310746
Step 403: 310746 + 773 = 311519
Step 404: 311519 + 773 = 312292
Step 405: 312292 + 773 = 313065
Step 406: 313065 + 773 = 313838
Step 407: 313838 + 773 = 314611
Step 408: 314611 + 773 = 315384
Step 409: 315384 + 773 = 316157
Step 410: 316157 + 773 = 316930
Step 411: 316930 + 773 = 317703
Step 412: 317703 + 773 = 318476
Step 413: 318476 + 773 = 319249
Step 414: 319249 + 773 = 320022
Step 415: 320022 + 773 = 320795
Step 416: 320795 + 773 = 321568
Step 417: 321568 + 773 = 322341
Step 418: 322341 + 773 = 323114
Step 419: 323114 + 773 = 323887
Step 420: 323887 + 773 = 324660

So, 773*420 = 324660