Without delay, let's solve this. We've got 531 and we will be multiplying it by 356, that is, adding 531 to itself 356 times.
Step 1: 0 + 531 = 531
Step 2: 531 + 531 = 1062
Step 3: 1062 + 531 = 1593
Step 4: 1593 + 531 = 2124
Step 5: 2124 + 531 = 2655
Step 6: 2655 + 531 = 3186
Step 7: 3186 + 531 = 3717
Step 8: 3717 + 531 = 4248
Step 9: 4248 + 531 = 4779
Step 10: 4779 + 531 = 5310
Step 11: 5310 + 531 = 5841
Step 12: 5841 + 531 = 6372
Step 13: 6372 + 531 = 6903
Step 14: 6903 + 531 = 7434
Step 15: 7434 + 531 = 7965
Step 16: 7965 + 531 = 8496
Step 17: 8496 + 531 = 9027
Step 18: 9027 + 531 = 9558
Step 19: 9558 + 531 = 10089
Step 20: 10089 + 531 = 10620
Step 21: 10620 + 531 = 11151
Step 22: 11151 + 531 = 11682
Step 23: 11682 + 531 = 12213
Step 24: 12213 + 531 = 12744
Step 25: 12744 + 531 = 13275
Step 26: 13275 + 531 = 13806
Step 27: 13806 + 531 = 14337
Step 28: 14337 + 531 = 14868
Step 29: 14868 + 531 = 15399
Step 30: 15399 + 531 = 15930
Step 31: 15930 + 531 = 16461
Step 32: 16461 + 531 = 16992
Step 33: 16992 + 531 = 17523
Step 34: 17523 + 531 = 18054
Step 35: 18054 + 531 = 18585
Step 36: 18585 + 531 = 19116
Step 37: 19116 + 531 = 19647
Step 38: 19647 + 531 = 20178
Step 39: 20178 + 531 = 20709
Step 40: 20709 + 531 = 21240
Step 41: 21240 + 531 = 21771
Step 42: 21771 + 531 = 22302
Step 43: 22302 + 531 = 22833
Step 44: 22833 + 531 = 23364
Step 45: 23364 + 531 = 23895
Step 46: 23895 + 531 = 24426
Step 47: 24426 + 531 = 24957
Step 48: 24957 + 531 = 25488
Step 49: 25488 + 531 = 26019
Step 50: 26019 + 531 = 26550
Step 51: 26550 + 531 = 27081
Step 52: 27081 + 531 = 27612
Step 53: 27612 + 531 = 28143
Step 54: 28143 + 531 = 28674
Step 55: 28674 + 531 = 29205
Step 56: 29205 + 531 = 29736
Step 57: 29736 + 531 = 30267
Step 58: 30267 + 531 = 30798
Step 59: 30798 + 531 = 31329
Step 60: 31329 + 531 = 31860
Step 61: 31860 + 531 = 32391
Step 62: 32391 + 531 = 32922
Step 63: 32922 + 531 = 33453
Step 64: 33453 + 531 = 33984
Step 65: 33984 + 531 = 34515
Step 66: 34515 + 531 = 35046
Step 67: 35046 + 531 = 35577
Step 68: 35577 + 531 = 36108
Step 69: 36108 + 531 = 36639
Step 70: 36639 + 531 = 37170
Step 71: 37170 + 531 = 37701
Step 72: 37701 + 531 = 38232
Step 73: 38232 + 531 = 38763
Step 74: 38763 + 531 = 39294
Step 75: 39294 + 531 = 39825
Step 76: 39825 + 531 = 40356
Step 77: 40356 + 531 = 40887
Step 78: 40887 + 531 = 41418
Step 79: 41418 + 531 = 41949
Step 80: 41949 + 531 = 42480
Step 81: 42480 + 531 = 43011
Step 82: 43011 + 531 = 43542
Step 83: 43542 + 531 = 44073
Step 84: 44073 + 531 = 44604
Step 85: 44604 + 531 = 45135
Step 86: 45135 + 531 = 45666
Step 87: 45666 + 531 = 46197
Step 88: 46197 + 531 = 46728
Step 89: 46728 + 531 = 47259
Step 90: 47259 + 531 = 47790
Step 91: 47790 + 531 = 48321
Step 92: 48321 + 531 = 48852
Step 93: 48852 + 531 = 49383
Step 94: 49383 + 531 = 49914
Step 95: 49914 + 531 = 50445
Step 96: 50445 + 531 = 50976
Step 97: 50976 + 531 = 51507
Step 98: 51507 + 531 = 52038
Step 99: 52038 + 531 = 52569
Step 100: 52569 + 531 = 53100
Step 101: 53100 + 531 = 53631
Step 102: 53631 + 531 = 54162
Step 103: 54162 + 531 = 54693
Step 104: 54693 + 531 = 55224
Step 105: 55224 + 531 = 55755
Step 106: 55755 + 531 = 56286
Step 107: 56286 + 531 = 56817
Step 108: 56817 + 531 = 57348
Step 109: 57348 + 531 = 57879
Step 110: 57879 + 531 = 58410
Step 111: 58410 + 531 = 58941
Step 112: 58941 + 531 = 59472
Step 113: 59472 + 531 = 60003
Step 114: 60003 + 531 = 60534
Step 115: 60534 + 531 = 61065
Step 116: 61065 + 531 = 61596
Step 117: 61596 + 531 = 62127
Step 118: 62127 + 531 = 62658
Step 119: 62658 + 531 = 63189
Step 120: 63189 + 531 = 63720
Step 121: 63720 + 531 = 64251
Step 122: 64251 + 531 = 64782
Step 123: 64782 + 531 = 65313
Step 124: 65313 + 531 = 65844
Step 125: 65844 + 531 = 66375
Step 126: 66375 + 531 = 66906
Step 127: 66906 + 531 = 67437
Step 128: 67437 + 531 = 67968
Step 129: 67968 + 531 = 68499
Step 130: 68499 + 531 = 69030
Step 131: 69030 + 531 = 69561
Step 132: 69561 + 531 = 70092
Step 133: 70092 + 531 = 70623
Step 134: 70623 + 531 = 71154
Step 135: 71154 + 531 = 71685
Step 136: 71685 + 531 = 72216
Step 137: 72216 + 531 = 72747
Step 138: 72747 + 531 = 73278
Step 139: 73278 + 531 = 73809
Step 140: 73809 + 531 = 74340
Step 141: 74340 + 531 = 74871
Step 142: 74871 + 531 = 75402
Step 143: 75402 + 531 = 75933
Step 144: 75933 + 531 = 76464
Step 145: 76464 + 531 = 76995
Step 146: 76995 + 531 = 77526
Step 147: 77526 + 531 = 78057
Step 148: 78057 + 531 = 78588
Step 149: 78588 + 531 = 79119
Step 150: 79119 + 531 = 79650
Step 151: 79650 + 531 = 80181
Step 152: 80181 + 531 = 80712
Step 153: 80712 + 531 = 81243
Step 154: 81243 + 531 = 81774
Step 155: 81774 + 531 = 82305
Step 156: 82305 + 531 = 82836
Step 157: 82836 + 531 = 83367
Step 158: 83367 + 531 = 83898
Step 159: 83898 + 531 = 84429
Step 160: 84429 + 531 = 84960
Step 161: 84960 + 531 = 85491
Step 162: 85491 + 531 = 86022
Step 163: 86022 + 531 = 86553
Step 164: 86553 + 531 = 87084
Step 165: 87084 + 531 = 87615
Step 166: 87615 + 531 = 88146
Step 167: 88146 + 531 = 88677
Step 168: 88677 + 531 = 89208
Step 169: 89208 + 531 = 89739
Step 170: 89739 + 531 = 90270
Step 171: 90270 + 531 = 90801
Step 172: 90801 + 531 = 91332
Step 173: 91332 + 531 = 91863
Step 174: 91863 + 531 = 92394
Step 175: 92394 + 531 = 92925
Step 176: 92925 + 531 = 93456
Step 177: 93456 + 531 = 93987
Step 178: 93987 + 531 = 94518
Step 179: 94518 + 531 = 95049
Step 180: 95049 + 531 = 95580
Step 181: 95580 + 531 = 96111
Step 182: 96111 + 531 = 96642
Step 183: 96642 + 531 = 97173
Step 184: 97173 + 531 = 97704
Step 185: 97704 + 531 = 98235
Step 186: 98235 + 531 = 98766
Step 187: 98766 + 531 = 99297
Step 188: 99297 + 531 = 99828
Step 189: 99828 + 531 = 100359
Step 190: 100359 + 531 = 100890
Step 191: 100890 + 531 = 101421
Step 192: 101421 + 531 = 101952
Step 193: 101952 + 531 = 102483
Step 194: 102483 + 531 = 103014
Step 195: 103014 + 531 = 103545
Step 196: 103545 + 531 = 104076
Step 197: 104076 + 531 = 104607
Step 198: 104607 + 531 = 105138
Step 199: 105138 + 531 = 105669
Step 200: 105669 + 531 = 106200
Step 201: 106200 + 531 = 106731
Step 202: 106731 + 531 = 107262
Step 203: 107262 + 531 = 107793
Step 204: 107793 + 531 = 108324
Step 205: 108324 + 531 = 108855
Step 206: 108855 + 531 = 109386
Step 207: 109386 + 531 = 109917
Step 208: 109917 + 531 = 110448
Step 209: 110448 + 531 = 110979
Step 210: 110979 + 531 = 111510
Step 211: 111510 + 531 = 112041
Step 212: 112041 + 531 = 112572
Step 213: 112572 + 531 = 113103
Step 214: 113103 + 531 = 113634
Step 215: 113634 + 531 = 114165
Step 216: 114165 + 531 = 114696
Step 217: 114696 + 531 = 115227
Step 218: 115227 + 531 = 115758
Step 219: 115758 + 531 = 116289
Step 220: 116289 + 531 = 116820
Step 221: 116820 + 531 = 117351
Step 222: 117351 + 531 = 117882
Step 223: 117882 + 531 = 118413
Step 224: 118413 + 531 = 118944
Step 225: 118944 + 531 = 119475
Step 226: 119475 + 531 = 120006
Step 227: 120006 + 531 = 120537
Step 228: 120537 + 531 = 121068
Step 229: 121068 + 531 = 121599
Step 230: 121599 + 531 = 122130
Step 231: 122130 + 531 = 122661
Step 232: 122661 + 531 = 123192
Step 233: 123192 + 531 = 123723
Step 234: 123723 + 531 = 124254
Step 235: 124254 + 531 = 124785
Step 236: 124785 + 531 = 125316
Step 237: 125316 + 531 = 125847
Step 238: 125847 + 531 = 126378
Step 239: 126378 + 531 = 126909
Step 240: 126909 + 531 = 127440
Step 241: 127440 + 531 = 127971
Step 242: 127971 + 531 = 128502
Step 243: 128502 + 531 = 129033
Step 244: 129033 + 531 = 129564
Step 245: 129564 + 531 = 130095
Step 246: 130095 + 531 = 130626
Step 247: 130626 + 531 = 131157
Step 248: 131157 + 531 = 131688
Step 249: 131688 + 531 = 132219
Step 250: 132219 + 531 = 132750
Step 251: 132750 + 531 = 133281
Step 252: 133281 + 531 = 133812
Step 253: 133812 + 531 = 134343
Step 254: 134343 + 531 = 134874
Step 255: 134874 + 531 = 135405
Step 256: 135405 + 531 = 135936
Step 257: 135936 + 531 = 136467
Step 258: 136467 + 531 = 136998
Step 259: 136998 + 531 = 137529
Step 260: 137529 + 531 = 138060
Step 261: 138060 + 531 = 138591
Step 262: 138591 + 531 = 139122
Step 263: 139122 + 531 = 139653
Step 264: 139653 + 531 = 140184
Step 265: 140184 + 531 = 140715
Step 266: 140715 + 531 = 141246
Step 267: 141246 + 531 = 141777
Step 268: 141777 + 531 = 142308
Step 269: 142308 + 531 = 142839
Step 270: 142839 + 531 = 143370
Step 271: 143370 + 531 = 143901
Step 272: 143901 + 531 = 144432
Step 273: 144432 + 531 = 144963
Step 274: 144963 + 531 = 145494
Step 275: 145494 + 531 = 146025
Step 276: 146025 + 531 = 146556
Step 277: 146556 + 531 = 147087
Step 278: 147087 + 531 = 147618
Step 279: 147618 + 531 = 148149
Step 280: 148149 + 531 = 148680
Step 281: 148680 + 531 = 149211
Step 282: 149211 + 531 = 149742
Step 283: 149742 + 531 = 150273
Step 284: 150273 + 531 = 150804
Step 285: 150804 + 531 = 151335
Step 286: 151335 + 531 = 151866
Step 287: 151866 + 531 = 152397
Step 288: 152397 + 531 = 152928
Step 289: 152928 + 531 = 153459
Step 290: 153459 + 531 = 153990
Step 291: 153990 + 531 = 154521
Step 292: 154521 + 531 = 155052
Step 293: 155052 + 531 = 155583
Step 294: 155583 + 531 = 156114
Step 295: 156114 + 531 = 156645
Step 296: 156645 + 531 = 157176
Step 297: 157176 + 531 = 157707
Step 298: 157707 + 531 = 158238
Step 299: 158238 + 531 = 158769
Step 300: 158769 + 531 = 159300
Step 301: 159300 + 531 = 159831
Step 302: 159831 + 531 = 160362
Step 303: 160362 + 531 = 160893
Step 304: 160893 + 531 = 161424
Step 305: 161424 + 531 = 161955
Step 306: 161955 + 531 = 162486
Step 307: 162486 + 531 = 163017
Step 308: 163017 + 531 = 163548
Step 309: 163548 + 531 = 164079
Step 310: 164079 + 531 = 164610
Step 311: 164610 + 531 = 165141
Step 312: 165141 + 531 = 165672
Step 313: 165672 + 531 = 166203
Step 314: 166203 + 531 = 166734
Step 315: 166734 + 531 = 167265
Step 316: 167265 + 531 = 167796
Step 317: 167796 + 531 = 168327
Step 318: 168327 + 531 = 168858
Step 319: 168858 + 531 = 169389
Step 320: 169389 + 531 = 169920
Step 321: 169920 + 531 = 170451
Step 322: 170451 + 531 = 170982
Step 323: 170982 + 531 = 171513
Step 324: 171513 + 531 = 172044
Step 325: 172044 + 531 = 172575
Step 326: 172575 + 531 = 173106
Step 327: 173106 + 531 = 173637
Step 328: 173637 + 531 = 174168
Step 329: 174168 + 531 = 174699
Step 330: 174699 + 531 = 175230
Step 331: 175230 + 531 = 175761
Step 332: 175761 + 531 = 176292
Step 333: 176292 + 531 = 176823
Step 334: 176823 + 531 = 177354
Step 335: 177354 + 531 = 177885
Step 336: 177885 + 531 = 178416
Step 337: 178416 + 531 = 178947
Step 338: 178947 + 531 = 179478
Step 339: 179478 + 531 = 180009
Step 340: 180009 + 531 = 180540
Step 341: 180540 + 531 = 181071
Step 342: 181071 + 531 = 181602
Step 343: 181602 + 531 = 182133
Step 344: 182133 + 531 = 182664
Step 345: 182664 + 531 = 183195
Step 346: 183195 + 531 = 183726
Step 347: 183726 + 531 = 184257
Step 348: 184257 + 531 = 184788
Step 349: 184788 + 531 = 185319
Step 350: 185319 + 531 = 185850
Step 351: 185850 + 531 = 186381
Step 352: 186381 + 531 = 186912
Step 353: 186912 + 531 = 187443
Step 354: 187443 + 531 = 187974
Step 355: 187974 + 531 = 188505
Step 356: 188505 + 531 = 189036

So, 531*356 = 189036