OK, let's crack this. We're given 534 and our task is to multiply it by 345. Essentially, we'll be adding 534 to itself 345 times.
Step 1: 0 + 534 = 534
Step 2: 534 + 534 = 1068
Step 3: 1068 + 534 = 1602
Step 4: 1602 + 534 = 2136
Step 5: 2136 + 534 = 2670
Step 6: 2670 + 534 = 3204
Step 7: 3204 + 534 = 3738
Step 8: 3738 + 534 = 4272
Step 9: 4272 + 534 = 4806
Step 10: 4806 + 534 = 5340
Step 11: 5340 + 534 = 5874
Step 12: 5874 + 534 = 6408
Step 13: 6408 + 534 = 6942
Step 14: 6942 + 534 = 7476
Step 15: 7476 + 534 = 8010
Step 16: 8010 + 534 = 8544
Step 17: 8544 + 534 = 9078
Step 18: 9078 + 534 = 9612
Step 19: 9612 + 534 = 10146
Step 20: 10146 + 534 = 10680
Step 21: 10680 + 534 = 11214
Step 22: 11214 + 534 = 11748
Step 23: 11748 + 534 = 12282
Step 24: 12282 + 534 = 12816
Step 25: 12816 + 534 = 13350
Step 26: 13350 + 534 = 13884
Step 27: 13884 + 534 = 14418
Step 28: 14418 + 534 = 14952
Step 29: 14952 + 534 = 15486
Step 30: 15486 + 534 = 16020
Step 31: 16020 + 534 = 16554
Step 32: 16554 + 534 = 17088
Step 33: 17088 + 534 = 17622
Step 34: 17622 + 534 = 18156
Step 35: 18156 + 534 = 18690
Step 36: 18690 + 534 = 19224
Step 37: 19224 + 534 = 19758
Step 38: 19758 + 534 = 20292
Step 39: 20292 + 534 = 20826
Step 40: 20826 + 534 = 21360
Step 41: 21360 + 534 = 21894
Step 42: 21894 + 534 = 22428
Step 43: 22428 + 534 = 22962
Step 44: 22962 + 534 = 23496
Step 45: 23496 + 534 = 24030
Step 46: 24030 + 534 = 24564
Step 47: 24564 + 534 = 25098
Step 48: 25098 + 534 = 25632
Step 49: 25632 + 534 = 26166
Step 50: 26166 + 534 = 26700
Step 51: 26700 + 534 = 27234
Step 52: 27234 + 534 = 27768
Step 53: 27768 + 534 = 28302
Step 54: 28302 + 534 = 28836
Step 55: 28836 + 534 = 29370
Step 56: 29370 + 534 = 29904
Step 57: 29904 + 534 = 30438
Step 58: 30438 + 534 = 30972
Step 59: 30972 + 534 = 31506
Step 60: 31506 + 534 = 32040
Step 61: 32040 + 534 = 32574
Step 62: 32574 + 534 = 33108
Step 63: 33108 + 534 = 33642
Step 64: 33642 + 534 = 34176
Step 65: 34176 + 534 = 34710
Step 66: 34710 + 534 = 35244
Step 67: 35244 + 534 = 35778
Step 68: 35778 + 534 = 36312
Step 69: 36312 + 534 = 36846
Step 70: 36846 + 534 = 37380
Step 71: 37380 + 534 = 37914
Step 72: 37914 + 534 = 38448
Step 73: 38448 + 534 = 38982
Step 74: 38982 + 534 = 39516
Step 75: 39516 + 534 = 40050
Step 76: 40050 + 534 = 40584
Step 77: 40584 + 534 = 41118
Step 78: 41118 + 534 = 41652
Step 79: 41652 + 534 = 42186
Step 80: 42186 + 534 = 42720
Step 81: 42720 + 534 = 43254
Step 82: 43254 + 534 = 43788
Step 83: 43788 + 534 = 44322
Step 84: 44322 + 534 = 44856
Step 85: 44856 + 534 = 45390
Step 86: 45390 + 534 = 45924
Step 87: 45924 + 534 = 46458
Step 88: 46458 + 534 = 46992
Step 89: 46992 + 534 = 47526
Step 90: 47526 + 534 = 48060
Step 91: 48060 + 534 = 48594
Step 92: 48594 + 534 = 49128
Step 93: 49128 + 534 = 49662
Step 94: 49662 + 534 = 50196
Step 95: 50196 + 534 = 50730
Step 96: 50730 + 534 = 51264
Step 97: 51264 + 534 = 51798
Step 98: 51798 + 534 = 52332
Step 99: 52332 + 534 = 52866
Step 100: 52866 + 534 = 53400
Step 101: 53400 + 534 = 53934
Step 102: 53934 + 534 = 54468
Step 103: 54468 + 534 = 55002
Step 104: 55002 + 534 = 55536
Step 105: 55536 + 534 = 56070
Step 106: 56070 + 534 = 56604
Step 107: 56604 + 534 = 57138
Step 108: 57138 + 534 = 57672
Step 109: 57672 + 534 = 58206
Step 110: 58206 + 534 = 58740
Step 111: 58740 + 534 = 59274
Step 112: 59274 + 534 = 59808
Step 113: 59808 + 534 = 60342
Step 114: 60342 + 534 = 60876
Step 115: 60876 + 534 = 61410
Step 116: 61410 + 534 = 61944
Step 117: 61944 + 534 = 62478
Step 118: 62478 + 534 = 63012
Step 119: 63012 + 534 = 63546
Step 120: 63546 + 534 = 64080
Step 121: 64080 + 534 = 64614
Step 122: 64614 + 534 = 65148
Step 123: 65148 + 534 = 65682
Step 124: 65682 + 534 = 66216
Step 125: 66216 + 534 = 66750
Step 126: 66750 + 534 = 67284
Step 127: 67284 + 534 = 67818
Step 128: 67818 + 534 = 68352
Step 129: 68352 + 534 = 68886
Step 130: 68886 + 534 = 69420
Step 131: 69420 + 534 = 69954
Step 132: 69954 + 534 = 70488
Step 133: 70488 + 534 = 71022
Step 134: 71022 + 534 = 71556
Step 135: 71556 + 534 = 72090
Step 136: 72090 + 534 = 72624
Step 137: 72624 + 534 = 73158
Step 138: 73158 + 534 = 73692
Step 139: 73692 + 534 = 74226
Step 140: 74226 + 534 = 74760
Step 141: 74760 + 534 = 75294
Step 142: 75294 + 534 = 75828
Step 143: 75828 + 534 = 76362
Step 144: 76362 + 534 = 76896
Step 145: 76896 + 534 = 77430
Step 146: 77430 + 534 = 77964
Step 147: 77964 + 534 = 78498
Step 148: 78498 + 534 = 79032
Step 149: 79032 + 534 = 79566
Step 150: 79566 + 534 = 80100
Step 151: 80100 + 534 = 80634
Step 152: 80634 + 534 = 81168
Step 153: 81168 + 534 = 81702
Step 154: 81702 + 534 = 82236
Step 155: 82236 + 534 = 82770
Step 156: 82770 + 534 = 83304
Step 157: 83304 + 534 = 83838
Step 158: 83838 + 534 = 84372
Step 159: 84372 + 534 = 84906
Step 160: 84906 + 534 = 85440
Step 161: 85440 + 534 = 85974
Step 162: 85974 + 534 = 86508
Step 163: 86508 + 534 = 87042
Step 164: 87042 + 534 = 87576
Step 165: 87576 + 534 = 88110
Step 166: 88110 + 534 = 88644
Step 167: 88644 + 534 = 89178
Step 168: 89178 + 534 = 89712
Step 169: 89712 + 534 = 90246
Step 170: 90246 + 534 = 90780
Step 171: 90780 + 534 = 91314
Step 172: 91314 + 534 = 91848
Step 173: 91848 + 534 = 92382
Step 174: 92382 + 534 = 92916
Step 175: 92916 + 534 = 93450
Step 176: 93450 + 534 = 93984
Step 177: 93984 + 534 = 94518
Step 178: 94518 + 534 = 95052
Step 179: 95052 + 534 = 95586
Step 180: 95586 + 534 = 96120
Step 181: 96120 + 534 = 96654
Step 182: 96654 + 534 = 97188
Step 183: 97188 + 534 = 97722
Step 184: 97722 + 534 = 98256
Step 185: 98256 + 534 = 98790
Step 186: 98790 + 534 = 99324
Step 187: 99324 + 534 = 99858
Step 188: 99858 + 534 = 100392
Step 189: 100392 + 534 = 100926
Step 190: 100926 + 534 = 101460
Step 191: 101460 + 534 = 101994
Step 192: 101994 + 534 = 102528
Step 193: 102528 + 534 = 103062
Step 194: 103062 + 534 = 103596
Step 195: 103596 + 534 = 104130
Step 196: 104130 + 534 = 104664
Step 197: 104664 + 534 = 105198
Step 198: 105198 + 534 = 105732
Step 199: 105732 + 534 = 106266
Step 200: 106266 + 534 = 106800
Step 201: 106800 + 534 = 107334
Step 202: 107334 + 534 = 107868
Step 203: 107868 + 534 = 108402
Step 204: 108402 + 534 = 108936
Step 205: 108936 + 534 = 109470
Step 206: 109470 + 534 = 110004
Step 207: 110004 + 534 = 110538
Step 208: 110538 + 534 = 111072
Step 209: 111072 + 534 = 111606
Step 210: 111606 + 534 = 112140
Step 211: 112140 + 534 = 112674
Step 212: 112674 + 534 = 113208
Step 213: 113208 + 534 = 113742
Step 214: 113742 + 534 = 114276
Step 215: 114276 + 534 = 114810
Step 216: 114810 + 534 = 115344
Step 217: 115344 + 534 = 115878
Step 218: 115878 + 534 = 116412
Step 219: 116412 + 534 = 116946
Step 220: 116946 + 534 = 117480
Step 221: 117480 + 534 = 118014
Step 222: 118014 + 534 = 118548
Step 223: 118548 + 534 = 119082
Step 224: 119082 + 534 = 119616
Step 225: 119616 + 534 = 120150
Step 226: 120150 + 534 = 120684
Step 227: 120684 + 534 = 121218
Step 228: 121218 + 534 = 121752
Step 229: 121752 + 534 = 122286
Step 230: 122286 + 534 = 122820
Step 231: 122820 + 534 = 123354
Step 232: 123354 + 534 = 123888
Step 233: 123888 + 534 = 124422
Step 234: 124422 + 534 = 124956
Step 235: 124956 + 534 = 125490
Step 236: 125490 + 534 = 126024
Step 237: 126024 + 534 = 126558
Step 238: 126558 + 534 = 127092
Step 239: 127092 + 534 = 127626
Step 240: 127626 + 534 = 128160
Step 241: 128160 + 534 = 128694
Step 242: 128694 + 534 = 129228
Step 243: 129228 + 534 = 129762
Step 244: 129762 + 534 = 130296
Step 245: 130296 + 534 = 130830
Step 246: 130830 + 534 = 131364
Step 247: 131364 + 534 = 131898
Step 248: 131898 + 534 = 132432
Step 249: 132432 + 534 = 132966
Step 250: 132966 + 534 = 133500
Step 251: 133500 + 534 = 134034
Step 252: 134034 + 534 = 134568
Step 253: 134568 + 534 = 135102
Step 254: 135102 + 534 = 135636
Step 255: 135636 + 534 = 136170
Step 256: 136170 + 534 = 136704
Step 257: 136704 + 534 = 137238
Step 258: 137238 + 534 = 137772
Step 259: 137772 + 534 = 138306
Step 260: 138306 + 534 = 138840
Step 261: 138840 + 534 = 139374
Step 262: 139374 + 534 = 139908
Step 263: 139908 + 534 = 140442
Step 264: 140442 + 534 = 140976
Step 265: 140976 + 534 = 141510
Step 266: 141510 + 534 = 142044
Step 267: 142044 + 534 = 142578
Step 268: 142578 + 534 = 143112
Step 269: 143112 + 534 = 143646
Step 270: 143646 + 534 = 144180
Step 271: 144180 + 534 = 144714
Step 272: 144714 + 534 = 145248
Step 273: 145248 + 534 = 145782
Step 274: 145782 + 534 = 146316
Step 275: 146316 + 534 = 146850
Step 276: 146850 + 534 = 147384
Step 277: 147384 + 534 = 147918
Step 278: 147918 + 534 = 148452
Step 279: 148452 + 534 = 148986
Step 280: 148986 + 534 = 149520
Step 281: 149520 + 534 = 150054
Step 282: 150054 + 534 = 150588
Step 283: 150588 + 534 = 151122
Step 284: 151122 + 534 = 151656
Step 285: 151656 + 534 = 152190
Step 286: 152190 + 534 = 152724
Step 287: 152724 + 534 = 153258
Step 288: 153258 + 534 = 153792
Step 289: 153792 + 534 = 154326
Step 290: 154326 + 534 = 154860
Step 291: 154860 + 534 = 155394
Step 292: 155394 + 534 = 155928
Step 293: 155928 + 534 = 156462
Step 294: 156462 + 534 = 156996
Step 295: 156996 + 534 = 157530
Step 296: 157530 + 534 = 158064
Step 297: 158064 + 534 = 158598
Step 298: 158598 + 534 = 159132
Step 299: 159132 + 534 = 159666
Step 300: 159666 + 534 = 160200
Step 301: 160200 + 534 = 160734
Step 302: 160734 + 534 = 161268
Step 303: 161268 + 534 = 161802
Step 304: 161802 + 534 = 162336
Step 305: 162336 + 534 = 162870
Step 306: 162870 + 534 = 163404
Step 307: 163404 + 534 = 163938
Step 308: 163938 + 534 = 164472
Step 309: 164472 + 534 = 165006
Step 310: 165006 + 534 = 165540
Step 311: 165540 + 534 = 166074
Step 312: 166074 + 534 = 166608
Step 313: 166608 + 534 = 167142
Step 314: 167142 + 534 = 167676
Step 315: 167676 + 534 = 168210
Step 316: 168210 + 534 = 168744
Step 317: 168744 + 534 = 169278
Step 318: 169278 + 534 = 169812
Step 319: 169812 + 534 = 170346
Step 320: 170346 + 534 = 170880
Step 321: 170880 + 534 = 171414
Step 322: 171414 + 534 = 171948
Step 323: 171948 + 534 = 172482
Step 324: 172482 + 534 = 173016
Step 325: 173016 + 534 = 173550
Step 326: 173550 + 534 = 174084
Step 327: 174084 + 534 = 174618
Step 328: 174618 + 534 = 175152
Step 329: 175152 + 534 = 175686
Step 330: 175686 + 534 = 176220
Step 331: 176220 + 534 = 176754
Step 332: 176754 + 534 = 177288
Step 333: 177288 + 534 = 177822
Step 334: 177822 + 534 = 178356
Step 335: 178356 + 534 = 178890
Step 336: 178890 + 534 = 179424
Step 337: 179424 + 534 = 179958
Step 338: 179958 + 534 = 180492
Step 339: 180492 + 534 = 181026
Step 340: 181026 + 534 = 181560
Step 341: 181560 + 534 = 182094
Step 342: 182094 + 534 = 182628
Step 343: 182628 + 534 = 183162
Step 344: 183162 + 534 = 183696
Step 345: 183696 + 534 = 184230

So, 534*345 = 184230