Alright, let's solve this math problem step by step. First, we have the number 111. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 423. So, we're going to take the number 111 and add it to itself 423 times.
Step 1: 0 + 111 = 111
Step 2: 111 + 111 = 222
Step 3: 222 + 111 = 333
Step 4: 333 + 111 = 444
Step 5: 444 + 111 = 555
Step 6: 555 + 111 = 666
Step 7: 666 + 111 = 777
Step 8: 777 + 111 = 888
Step 9: 888 + 111 = 999
Step 10: 999 + 111 = 1110
Step 11: 1110 + 111 = 1221
Step 12: 1221 + 111 = 1332
Step 13: 1332 + 111 = 1443
Step 14: 1443 + 111 = 1554
Step 15: 1554 + 111 = 1665
Step 16: 1665 + 111 = 1776
Step 17: 1776 + 111 = 1887
Step 18: 1887 + 111 = 1998
Step 19: 1998 + 111 = 2109
Step 20: 2109 + 111 = 2220
Step 21: 2220 + 111 = 2331
Step 22: 2331 + 111 = 2442
Step 23: 2442 + 111 = 2553
Step 24: 2553 + 111 = 2664
Step 25: 2664 + 111 = 2775
Step 26: 2775 + 111 = 2886
Step 27: 2886 + 111 = 2997
Step 28: 2997 + 111 = 3108
Step 29: 3108 + 111 = 3219
Step 30: 3219 + 111 = 3330
Step 31: 3330 + 111 = 3441
Step 32: 3441 + 111 = 3552
Step 33: 3552 + 111 = 3663
Step 34: 3663 + 111 = 3774
Step 35: 3774 + 111 = 3885
Step 36: 3885 + 111 = 3996
Step 37: 3996 + 111 = 4107
Step 38: 4107 + 111 = 4218
Step 39: 4218 + 111 = 4329
Step 40: 4329 + 111 = 4440
Step 41: 4440 + 111 = 4551
Step 42: 4551 + 111 = 4662
Step 43: 4662 + 111 = 4773
Step 44: 4773 + 111 = 4884
Step 45: 4884 + 111 = 4995
Step 46: 4995 + 111 = 5106
Step 47: 5106 + 111 = 5217
Step 48: 5217 + 111 = 5328
Step 49: 5328 + 111 = 5439
Step 50: 5439 + 111 = 5550
Step 51: 5550 + 111 = 5661
Step 52: 5661 + 111 = 5772
Step 53: 5772 + 111 = 5883
Step 54: 5883 + 111 = 5994
Step 55: 5994 + 111 = 6105
Step 56: 6105 + 111 = 6216
Step 57: 6216 + 111 = 6327
Step 58: 6327 + 111 = 6438
Step 59: 6438 + 111 = 6549
Step 60: 6549 + 111 = 6660
Step 61: 6660 + 111 = 6771
Step 62: 6771 + 111 = 6882
Step 63: 6882 + 111 = 6993
Step 64: 6993 + 111 = 7104
Step 65: 7104 + 111 = 7215
Step 66: 7215 + 111 = 7326
Step 67: 7326 + 111 = 7437
Step 68: 7437 + 111 = 7548
Step 69: 7548 + 111 = 7659
Step 70: 7659 + 111 = 7770
Step 71: 7770 + 111 = 7881
Step 72: 7881 + 111 = 7992
Step 73: 7992 + 111 = 8103
Step 74: 8103 + 111 = 8214
Step 75: 8214 + 111 = 8325
Step 76: 8325 + 111 = 8436
Step 77: 8436 + 111 = 8547
Step 78: 8547 + 111 = 8658
Step 79: 8658 + 111 = 8769
Step 80: 8769 + 111 = 8880
Step 81: 8880 + 111 = 8991
Step 82: 8991 + 111 = 9102
Step 83: 9102 + 111 = 9213
Step 84: 9213 + 111 = 9324
Step 85: 9324 + 111 = 9435
Step 86: 9435 + 111 = 9546
Step 87: 9546 + 111 = 9657
Step 88: 9657 + 111 = 9768
Step 89: 9768 + 111 = 9879
Step 90: 9879 + 111 = 9990
Step 91: 9990 + 111 = 10101
Step 92: 10101 + 111 = 10212
Step 93: 10212 + 111 = 10323
Step 94: 10323 + 111 = 10434
Step 95: 10434 + 111 = 10545
Step 96: 10545 + 111 = 10656
Step 97: 10656 + 111 = 10767
Step 98: 10767 + 111 = 10878
Step 99: 10878 + 111 = 10989
Step 100: 10989 + 111 = 11100
Step 101: 11100 + 111 = 11211
Step 102: 11211 + 111 = 11322
Step 103: 11322 + 111 = 11433
Step 104: 11433 + 111 = 11544
Step 105: 11544 + 111 = 11655
Step 106: 11655 + 111 = 11766
Step 107: 11766 + 111 = 11877
Step 108: 11877 + 111 = 11988
Step 109: 11988 + 111 = 12099
Step 110: 12099 + 111 = 12210
Step 111: 12210 + 111 = 12321
Step 112: 12321 + 111 = 12432
Step 113: 12432 + 111 = 12543
Step 114: 12543 + 111 = 12654
Step 115: 12654 + 111 = 12765
Step 116: 12765 + 111 = 12876
Step 117: 12876 + 111 = 12987
Step 118: 12987 + 111 = 13098
Step 119: 13098 + 111 = 13209
Step 120: 13209 + 111 = 13320
Step 121: 13320 + 111 = 13431
Step 122: 13431 + 111 = 13542
Step 123: 13542 + 111 = 13653
Step 124: 13653 + 111 = 13764
Step 125: 13764 + 111 = 13875
Step 126: 13875 + 111 = 13986
Step 127: 13986 + 111 = 14097
Step 128: 14097 + 111 = 14208
Step 129: 14208 + 111 = 14319
Step 130: 14319 + 111 = 14430
Step 131: 14430 + 111 = 14541
Step 132: 14541 + 111 = 14652
Step 133: 14652 + 111 = 14763
Step 134: 14763 + 111 = 14874
Step 135: 14874 + 111 = 14985
Step 136: 14985 + 111 = 15096
Step 137: 15096 + 111 = 15207
Step 138: 15207 + 111 = 15318
Step 139: 15318 + 111 = 15429
Step 140: 15429 + 111 = 15540
Step 141: 15540 + 111 = 15651
Step 142: 15651 + 111 = 15762
Step 143: 15762 + 111 = 15873
Step 144: 15873 + 111 = 15984
Step 145: 15984 + 111 = 16095
Step 146: 16095 + 111 = 16206
Step 147: 16206 + 111 = 16317
Step 148: 16317 + 111 = 16428
Step 149: 16428 + 111 = 16539
Step 150: 16539 + 111 = 16650
Step 151: 16650 + 111 = 16761
Step 152: 16761 + 111 = 16872
Step 153: 16872 + 111 = 16983
Step 154: 16983 + 111 = 17094
Step 155: 17094 + 111 = 17205
Step 156: 17205 + 111 = 17316
Step 157: 17316 + 111 = 17427
Step 158: 17427 + 111 = 17538
Step 159: 17538 + 111 = 17649
Step 160: 17649 + 111 = 17760
Step 161: 17760 + 111 = 17871
Step 162: 17871 + 111 = 17982
Step 163: 17982 + 111 = 18093
Step 164: 18093 + 111 = 18204
Step 165: 18204 + 111 = 18315
Step 166: 18315 + 111 = 18426
Step 167: 18426 + 111 = 18537
Step 168: 18537 + 111 = 18648
Step 169: 18648 + 111 = 18759
Step 170: 18759 + 111 = 18870
Step 171: 18870 + 111 = 18981
Step 172: 18981 + 111 = 19092
Step 173: 19092 + 111 = 19203
Step 174: 19203 + 111 = 19314
Step 175: 19314 + 111 = 19425
Step 176: 19425 + 111 = 19536
Step 177: 19536 + 111 = 19647
Step 178: 19647 + 111 = 19758
Step 179: 19758 + 111 = 19869
Step 180: 19869 + 111 = 19980
Step 181: 19980 + 111 = 20091
Step 182: 20091 + 111 = 20202
Step 183: 20202 + 111 = 20313
Step 184: 20313 + 111 = 20424
Step 185: 20424 + 111 = 20535
Step 186: 20535 + 111 = 20646
Step 187: 20646 + 111 = 20757
Step 188: 20757 + 111 = 20868
Step 189: 20868 + 111 = 20979
Step 190: 20979 + 111 = 21090
Step 191: 21090 + 111 = 21201
Step 192: 21201 + 111 = 21312
Step 193: 21312 + 111 = 21423
Step 194: 21423 + 111 = 21534
Step 195: 21534 + 111 = 21645
Step 196: 21645 + 111 = 21756
Step 197: 21756 + 111 = 21867
Step 198: 21867 + 111 = 21978
Step 199: 21978 + 111 = 22089
Step 200: 22089 + 111 = 22200
Step 201: 22200 + 111 = 22311
Step 202: 22311 + 111 = 22422
Step 203: 22422 + 111 = 22533
Step 204: 22533 + 111 = 22644
Step 205: 22644 + 111 = 22755
Step 206: 22755 + 111 = 22866
Step 207: 22866 + 111 = 22977
Step 208: 22977 + 111 = 23088
Step 209: 23088 + 111 = 23199
Step 210: 23199 + 111 = 23310
Step 211: 23310 + 111 = 23421
Step 212: 23421 + 111 = 23532
Step 213: 23532 + 111 = 23643
Step 214: 23643 + 111 = 23754
Step 215: 23754 + 111 = 23865
Step 216: 23865 + 111 = 23976
Step 217: 23976 + 111 = 24087
Step 218: 24087 + 111 = 24198
Step 219: 24198 + 111 = 24309
Step 220: 24309 + 111 = 24420
Step 221: 24420 + 111 = 24531
Step 222: 24531 + 111 = 24642
Step 223: 24642 + 111 = 24753
Step 224: 24753 + 111 = 24864
Step 225: 24864 + 111 = 24975
Step 226: 24975 + 111 = 25086
Step 227: 25086 + 111 = 25197
Step 228: 25197 + 111 = 25308
Step 229: 25308 + 111 = 25419
Step 230: 25419 + 111 = 25530
Step 231: 25530 + 111 = 25641
Step 232: 25641 + 111 = 25752
Step 233: 25752 + 111 = 25863
Step 234: 25863 + 111 = 25974
Step 235: 25974 + 111 = 26085
Step 236: 26085 + 111 = 26196
Step 237: 26196 + 111 = 26307
Step 238: 26307 + 111 = 26418
Step 239: 26418 + 111 = 26529
Step 240: 26529 + 111 = 26640
Step 241: 26640 + 111 = 26751
Step 242: 26751 + 111 = 26862
Step 243: 26862 + 111 = 26973
Step 244: 26973 + 111 = 27084
Step 245: 27084 + 111 = 27195
Step 246: 27195 + 111 = 27306
Step 247: 27306 + 111 = 27417
Step 248: 27417 + 111 = 27528
Step 249: 27528 + 111 = 27639
Step 250: 27639 + 111 = 27750
Step 251: 27750 + 111 = 27861
Step 252: 27861 + 111 = 27972
Step 253: 27972 + 111 = 28083
Step 254: 28083 + 111 = 28194
Step 255: 28194 + 111 = 28305
Step 256: 28305 + 111 = 28416
Step 257: 28416 + 111 = 28527
Step 258: 28527 + 111 = 28638
Step 259: 28638 + 111 = 28749
Step 260: 28749 + 111 = 28860
Step 261: 28860 + 111 = 28971
Step 262: 28971 + 111 = 29082
Step 263: 29082 + 111 = 29193
Step 264: 29193 + 111 = 29304
Step 265: 29304 + 111 = 29415
Step 266: 29415 + 111 = 29526
Step 267: 29526 + 111 = 29637
Step 268: 29637 + 111 = 29748
Step 269: 29748 + 111 = 29859
Step 270: 29859 + 111 = 29970
Step 271: 29970 + 111 = 30081
Step 272: 30081 + 111 = 30192
Step 273: 30192 + 111 = 30303
Step 274: 30303 + 111 = 30414
Step 275: 30414 + 111 = 30525
Step 276: 30525 + 111 = 30636
Step 277: 30636 + 111 = 30747
Step 278: 30747 + 111 = 30858
Step 279: 30858 + 111 = 30969
Step 280: 30969 + 111 = 31080
Step 281: 31080 + 111 = 31191
Step 282: 31191 + 111 = 31302
Step 283: 31302 + 111 = 31413
Step 284: 31413 + 111 = 31524
Step 285: 31524 + 111 = 31635
Step 286: 31635 + 111 = 31746
Step 287: 31746 + 111 = 31857
Step 288: 31857 + 111 = 31968
Step 289: 31968 + 111 = 32079
Step 290: 32079 + 111 = 32190
Step 291: 32190 + 111 = 32301
Step 292: 32301 + 111 = 32412
Step 293: 32412 + 111 = 32523
Step 294: 32523 + 111 = 32634
Step 295: 32634 + 111 = 32745
Step 296: 32745 + 111 = 32856
Step 297: 32856 + 111 = 32967
Step 298: 32967 + 111 = 33078
Step 299: 33078 + 111 = 33189
Step 300: 33189 + 111 = 33300
Step 301: 33300 + 111 = 33411
Step 302: 33411 + 111 = 33522
Step 303: 33522 + 111 = 33633
Step 304: 33633 + 111 = 33744
Step 305: 33744 + 111 = 33855
Step 306: 33855 + 111 = 33966
Step 307: 33966 + 111 = 34077
Step 308: 34077 + 111 = 34188
Step 309: 34188 + 111 = 34299
Step 310: 34299 + 111 = 34410
Step 311: 34410 + 111 = 34521
Step 312: 34521 + 111 = 34632
Step 313: 34632 + 111 = 34743
Step 314: 34743 + 111 = 34854
Step 315: 34854 + 111 = 34965
Step 316: 34965 + 111 = 35076
Step 317: 35076 + 111 = 35187
Step 318: 35187 + 111 = 35298
Step 319: 35298 + 111 = 35409
Step 320: 35409 + 111 = 35520
Step 321: 35520 + 111 = 35631
Step 322: 35631 + 111 = 35742
Step 323: 35742 + 111 = 35853
Step 324: 35853 + 111 = 35964
Step 325: 35964 + 111 = 36075
Step 326: 36075 + 111 = 36186
Step 327: 36186 + 111 = 36297
Step 328: 36297 + 111 = 36408
Step 329: 36408 + 111 = 36519
Step 330: 36519 + 111 = 36630
Step 331: 36630 + 111 = 36741
Step 332: 36741 + 111 = 36852
Step 333: 36852 + 111 = 36963
Step 334: 36963 + 111 = 37074
Step 335: 37074 + 111 = 37185
Step 336: 37185 + 111 = 37296
Step 337: 37296 + 111 = 37407
Step 338: 37407 + 111 = 37518
Step 339: 37518 + 111 = 37629
Step 340: 37629 + 111 = 37740
Step 341: 37740 + 111 = 37851
Step 342: 37851 + 111 = 37962
Step 343: 37962 + 111 = 38073
Step 344: 38073 + 111 = 38184
Step 345: 38184 + 111 = 38295
Step 346: 38295 + 111 = 38406
Step 347: 38406 + 111 = 38517
Step 348: 38517 + 111 = 38628
Step 349: 38628 + 111 = 38739
Step 350: 38739 + 111 = 38850
Step 351: 38850 + 111 = 38961
Step 352: 38961 + 111 = 39072
Step 353: 39072 + 111 = 39183
Step 354: 39183 + 111 = 39294
Step 355: 39294 + 111 = 39405
Step 356: 39405 + 111 = 39516
Step 357: 39516 + 111 = 39627
Step 358: 39627 + 111 = 39738
Step 359: 39738 + 111 = 39849
Step 360: 39849 + 111 = 39960
Step 361: 39960 + 111 = 40071
Step 362: 40071 + 111 = 40182
Step 363: 40182 + 111 = 40293
Step 364: 40293 + 111 = 40404
Step 365: 40404 + 111 = 40515
Step 366: 40515 + 111 = 40626
Step 367: 40626 + 111 = 40737
Step 368: 40737 + 111 = 40848
Step 369: 40848 + 111 = 40959
Step 370: 40959 + 111 = 41070
Step 371: 41070 + 111 = 41181
Step 372: 41181 + 111 = 41292
Step 373: 41292 + 111 = 41403
Step 374: 41403 + 111 = 41514
Step 375: 41514 + 111 = 41625
Step 376: 41625 + 111 = 41736
Step 377: 41736 + 111 = 41847
Step 378: 41847 + 111 = 41958
Step 379: 41958 + 111 = 42069
Step 380: 42069 + 111 = 42180
Step 381: 42180 + 111 = 42291
Step 382: 42291 + 111 = 42402
Step 383: 42402 + 111 = 42513
Step 384: 42513 + 111 = 42624
Step 385: 42624 + 111 = 42735
Step 386: 42735 + 111 = 42846
Step 387: 42846 + 111 = 42957
Step 388: 42957 + 111 = 43068
Step 389: 43068 + 111 = 43179
Step 390: 43179 + 111 = 43290
Step 391: 43290 + 111 = 43401
Step 392: 43401 + 111 = 43512
Step 393: 43512 + 111 = 43623
Step 394: 43623 + 111 = 43734
Step 395: 43734 + 111 = 43845
Step 396: 43845 + 111 = 43956
Step 397: 43956 + 111 = 44067
Step 398: 44067 + 111 = 44178
Step 399: 44178 + 111 = 44289
Step 400: 44289 + 111 = 44400
Step 401: 44400 + 111 = 44511
Step 402: 44511 + 111 = 44622
Step 403: 44622 + 111 = 44733
Step 404: 44733 + 111 = 44844
Step 405: 44844 + 111 = 44955
Step 406: 44955 + 111 = 45066
Step 407: 45066 + 111 = 45177
Step 408: 45177 + 111 = 45288
Step 409: 45288 + 111 = 45399
Step 410: 45399 + 111 = 45510
Step 411: 45510 + 111 = 45621
Step 412: 45621 + 111 = 45732
Step 413: 45732 + 111 = 45843
Step 414: 45843 + 111 = 45954
Step 415: 45954 + 111 = 46065
Step 416: 46065 + 111 = 46176
Step 417: 46176 + 111 = 46287
Step 418: 46287 + 111 = 46398
Step 419: 46398 + 111 = 46509
Step 420: 46509 + 111 = 46620
Step 421: 46620 + 111 = 46731
Step 422: 46731 + 111 = 46842
Step 423: 46842 + 111 = 46953

So, 111*423 = 46953