Alright, let's solve this math problem step by step. First, we have the number 31. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 486. So, we're going to take the number 31 and add it to itself 486 times.
Step 1: 0 + 31 = 31
Step 2: 31 + 31 = 62
Step 3: 62 + 31 = 93
Step 4: 93 + 31 = 124
Step 5: 124 + 31 = 155
Step 6: 155 + 31 = 186
Step 7: 186 + 31 = 217
Step 8: 217 + 31 = 248
Step 9: 248 + 31 = 279
Step 10: 279 + 31 = 310
Step 11: 310 + 31 = 341
Step 12: 341 + 31 = 372
Step 13: 372 + 31 = 403
Step 14: 403 + 31 = 434
Step 15: 434 + 31 = 465
Step 16: 465 + 31 = 496
Step 17: 496 + 31 = 527
Step 18: 527 + 31 = 558
Step 19: 558 + 31 = 589
Step 20: 589 + 31 = 620
Step 21: 620 + 31 = 651
Step 22: 651 + 31 = 682
Step 23: 682 + 31 = 713
Step 24: 713 + 31 = 744
Step 25: 744 + 31 = 775
Step 26: 775 + 31 = 806
Step 27: 806 + 31 = 837
Step 28: 837 + 31 = 868
Step 29: 868 + 31 = 899
Step 30: 899 + 31 = 930
Step 31: 930 + 31 = 961
Step 32: 961 + 31 = 992
Step 33: 992 + 31 = 1023
Step 34: 1023 + 31 = 1054
Step 35: 1054 + 31 = 1085
Step 36: 1085 + 31 = 1116
Step 37: 1116 + 31 = 1147
Step 38: 1147 + 31 = 1178
Step 39: 1178 + 31 = 1209
Step 40: 1209 + 31 = 1240
Step 41: 1240 + 31 = 1271
Step 42: 1271 + 31 = 1302
Step 43: 1302 + 31 = 1333
Step 44: 1333 + 31 = 1364
Step 45: 1364 + 31 = 1395
Step 46: 1395 + 31 = 1426
Step 47: 1426 + 31 = 1457
Step 48: 1457 + 31 = 1488
Step 49: 1488 + 31 = 1519
Step 50: 1519 + 31 = 1550
Step 51: 1550 + 31 = 1581
Step 52: 1581 + 31 = 1612
Step 53: 1612 + 31 = 1643
Step 54: 1643 + 31 = 1674
Step 55: 1674 + 31 = 1705
Step 56: 1705 + 31 = 1736
Step 57: 1736 + 31 = 1767
Step 58: 1767 + 31 = 1798
Step 59: 1798 + 31 = 1829
Step 60: 1829 + 31 = 1860
Step 61: 1860 + 31 = 1891
Step 62: 1891 + 31 = 1922
Step 63: 1922 + 31 = 1953
Step 64: 1953 + 31 = 1984
Step 65: 1984 + 31 = 2015
Step 66: 2015 + 31 = 2046
Step 67: 2046 + 31 = 2077
Step 68: 2077 + 31 = 2108
Step 69: 2108 + 31 = 2139
Step 70: 2139 + 31 = 2170
Step 71: 2170 + 31 = 2201
Step 72: 2201 + 31 = 2232
Step 73: 2232 + 31 = 2263
Step 74: 2263 + 31 = 2294
Step 75: 2294 + 31 = 2325
Step 76: 2325 + 31 = 2356
Step 77: 2356 + 31 = 2387
Step 78: 2387 + 31 = 2418
Step 79: 2418 + 31 = 2449
Step 80: 2449 + 31 = 2480
Step 81: 2480 + 31 = 2511
Step 82: 2511 + 31 = 2542
Step 83: 2542 + 31 = 2573
Step 84: 2573 + 31 = 2604
Step 85: 2604 + 31 = 2635
Step 86: 2635 + 31 = 2666
Step 87: 2666 + 31 = 2697
Step 88: 2697 + 31 = 2728
Step 89: 2728 + 31 = 2759
Step 90: 2759 + 31 = 2790
Step 91: 2790 + 31 = 2821
Step 92: 2821 + 31 = 2852
Step 93: 2852 + 31 = 2883
Step 94: 2883 + 31 = 2914
Step 95: 2914 + 31 = 2945
Step 96: 2945 + 31 = 2976
Step 97: 2976 + 31 = 3007
Step 98: 3007 + 31 = 3038
Step 99: 3038 + 31 = 3069
Step 100: 3069 + 31 = 3100
Step 101: 3100 + 31 = 3131
Step 102: 3131 + 31 = 3162
Step 103: 3162 + 31 = 3193
Step 104: 3193 + 31 = 3224
Step 105: 3224 + 31 = 3255
Step 106: 3255 + 31 = 3286
Step 107: 3286 + 31 = 3317
Step 108: 3317 + 31 = 3348
Step 109: 3348 + 31 = 3379
Step 110: 3379 + 31 = 3410
Step 111: 3410 + 31 = 3441
Step 112: 3441 + 31 = 3472
Step 113: 3472 + 31 = 3503
Step 114: 3503 + 31 = 3534
Step 115: 3534 + 31 = 3565
Step 116: 3565 + 31 = 3596
Step 117: 3596 + 31 = 3627
Step 118: 3627 + 31 = 3658
Step 119: 3658 + 31 = 3689
Step 120: 3689 + 31 = 3720
Step 121: 3720 + 31 = 3751
Step 122: 3751 + 31 = 3782
Step 123: 3782 + 31 = 3813
Step 124: 3813 + 31 = 3844
Step 125: 3844 + 31 = 3875
Step 126: 3875 + 31 = 3906
Step 127: 3906 + 31 = 3937
Step 128: 3937 + 31 = 3968
Step 129: 3968 + 31 = 3999
Step 130: 3999 + 31 = 4030
Step 131: 4030 + 31 = 4061
Step 132: 4061 + 31 = 4092
Step 133: 4092 + 31 = 4123
Step 134: 4123 + 31 = 4154
Step 135: 4154 + 31 = 4185
Step 136: 4185 + 31 = 4216
Step 137: 4216 + 31 = 4247
Step 138: 4247 + 31 = 4278
Step 139: 4278 + 31 = 4309
Step 140: 4309 + 31 = 4340
Step 141: 4340 + 31 = 4371
Step 142: 4371 + 31 = 4402
Step 143: 4402 + 31 = 4433
Step 144: 4433 + 31 = 4464
Step 145: 4464 + 31 = 4495
Step 146: 4495 + 31 = 4526
Step 147: 4526 + 31 = 4557
Step 148: 4557 + 31 = 4588
Step 149: 4588 + 31 = 4619
Step 150: 4619 + 31 = 4650
Step 151: 4650 + 31 = 4681
Step 152: 4681 + 31 = 4712
Step 153: 4712 + 31 = 4743
Step 154: 4743 + 31 = 4774
Step 155: 4774 + 31 = 4805
Step 156: 4805 + 31 = 4836
Step 157: 4836 + 31 = 4867
Step 158: 4867 + 31 = 4898
Step 159: 4898 + 31 = 4929
Step 160: 4929 + 31 = 4960
Step 161: 4960 + 31 = 4991
Step 162: 4991 + 31 = 5022
Step 163: 5022 + 31 = 5053
Step 164: 5053 + 31 = 5084
Step 165: 5084 + 31 = 5115
Step 166: 5115 + 31 = 5146
Step 167: 5146 + 31 = 5177
Step 168: 5177 + 31 = 5208
Step 169: 5208 + 31 = 5239
Step 170: 5239 + 31 = 5270
Step 171: 5270 + 31 = 5301
Step 172: 5301 + 31 = 5332
Step 173: 5332 + 31 = 5363
Step 174: 5363 + 31 = 5394
Step 175: 5394 + 31 = 5425
Step 176: 5425 + 31 = 5456
Step 177: 5456 + 31 = 5487
Step 178: 5487 + 31 = 5518
Step 179: 5518 + 31 = 5549
Step 180: 5549 + 31 = 5580
Step 181: 5580 + 31 = 5611
Step 182: 5611 + 31 = 5642
Step 183: 5642 + 31 = 5673
Step 184: 5673 + 31 = 5704
Step 185: 5704 + 31 = 5735
Step 186: 5735 + 31 = 5766
Step 187: 5766 + 31 = 5797
Step 188: 5797 + 31 = 5828
Step 189: 5828 + 31 = 5859
Step 190: 5859 + 31 = 5890
Step 191: 5890 + 31 = 5921
Step 192: 5921 + 31 = 5952
Step 193: 5952 + 31 = 5983
Step 194: 5983 + 31 = 6014
Step 195: 6014 + 31 = 6045
Step 196: 6045 + 31 = 6076
Step 197: 6076 + 31 = 6107
Step 198: 6107 + 31 = 6138
Step 199: 6138 + 31 = 6169
Step 200: 6169 + 31 = 6200
Step 201: 6200 + 31 = 6231
Step 202: 6231 + 31 = 6262
Step 203: 6262 + 31 = 6293
Step 204: 6293 + 31 = 6324
Step 205: 6324 + 31 = 6355
Step 206: 6355 + 31 = 6386
Step 207: 6386 + 31 = 6417
Step 208: 6417 + 31 = 6448
Step 209: 6448 + 31 = 6479
Step 210: 6479 + 31 = 6510
Step 211: 6510 + 31 = 6541
Step 212: 6541 + 31 = 6572
Step 213: 6572 + 31 = 6603
Step 214: 6603 + 31 = 6634
Step 215: 6634 + 31 = 6665
Step 216: 6665 + 31 = 6696
Step 217: 6696 + 31 = 6727
Step 218: 6727 + 31 = 6758
Step 219: 6758 + 31 = 6789
Step 220: 6789 + 31 = 6820
Step 221: 6820 + 31 = 6851
Step 222: 6851 + 31 = 6882
Step 223: 6882 + 31 = 6913
Step 224: 6913 + 31 = 6944
Step 225: 6944 + 31 = 6975
Step 226: 6975 + 31 = 7006
Step 227: 7006 + 31 = 7037
Step 228: 7037 + 31 = 7068
Step 229: 7068 + 31 = 7099
Step 230: 7099 + 31 = 7130
Step 231: 7130 + 31 = 7161
Step 232: 7161 + 31 = 7192
Step 233: 7192 + 31 = 7223
Step 234: 7223 + 31 = 7254
Step 235: 7254 + 31 = 7285
Step 236: 7285 + 31 = 7316
Step 237: 7316 + 31 = 7347
Step 238: 7347 + 31 = 7378
Step 239: 7378 + 31 = 7409
Step 240: 7409 + 31 = 7440
Step 241: 7440 + 31 = 7471
Step 242: 7471 + 31 = 7502
Step 243: 7502 + 31 = 7533
Step 244: 7533 + 31 = 7564
Step 245: 7564 + 31 = 7595
Step 246: 7595 + 31 = 7626
Step 247: 7626 + 31 = 7657
Step 248: 7657 + 31 = 7688
Step 249: 7688 + 31 = 7719
Step 250: 7719 + 31 = 7750
Step 251: 7750 + 31 = 7781
Step 252: 7781 + 31 = 7812
Step 253: 7812 + 31 = 7843
Step 254: 7843 + 31 = 7874
Step 255: 7874 + 31 = 7905
Step 256: 7905 + 31 = 7936
Step 257: 7936 + 31 = 7967
Step 258: 7967 + 31 = 7998
Step 259: 7998 + 31 = 8029
Step 260: 8029 + 31 = 8060
Step 261: 8060 + 31 = 8091
Step 262: 8091 + 31 = 8122
Step 263: 8122 + 31 = 8153
Step 264: 8153 + 31 = 8184
Step 265: 8184 + 31 = 8215
Step 266: 8215 + 31 = 8246
Step 267: 8246 + 31 = 8277
Step 268: 8277 + 31 = 8308
Step 269: 8308 + 31 = 8339
Step 270: 8339 + 31 = 8370
Step 271: 8370 + 31 = 8401
Step 272: 8401 + 31 = 8432
Step 273: 8432 + 31 = 8463
Step 274: 8463 + 31 = 8494
Step 275: 8494 + 31 = 8525
Step 276: 8525 + 31 = 8556
Step 277: 8556 + 31 = 8587
Step 278: 8587 + 31 = 8618
Step 279: 8618 + 31 = 8649
Step 280: 8649 + 31 = 8680
Step 281: 8680 + 31 = 8711
Step 282: 8711 + 31 = 8742
Step 283: 8742 + 31 = 8773
Step 284: 8773 + 31 = 8804
Step 285: 8804 + 31 = 8835
Step 286: 8835 + 31 = 8866
Step 287: 8866 + 31 = 8897
Step 288: 8897 + 31 = 8928
Step 289: 8928 + 31 = 8959
Step 290: 8959 + 31 = 8990
Step 291: 8990 + 31 = 9021
Step 292: 9021 + 31 = 9052
Step 293: 9052 + 31 = 9083
Step 294: 9083 + 31 = 9114
Step 295: 9114 + 31 = 9145
Step 296: 9145 + 31 = 9176
Step 297: 9176 + 31 = 9207
Step 298: 9207 + 31 = 9238
Step 299: 9238 + 31 = 9269
Step 300: 9269 + 31 = 9300
Step 301: 9300 + 31 = 9331
Step 302: 9331 + 31 = 9362
Step 303: 9362 + 31 = 9393
Step 304: 9393 + 31 = 9424
Step 305: 9424 + 31 = 9455
Step 306: 9455 + 31 = 9486
Step 307: 9486 + 31 = 9517
Step 308: 9517 + 31 = 9548
Step 309: 9548 + 31 = 9579
Step 310: 9579 + 31 = 9610
Step 311: 9610 + 31 = 9641
Step 312: 9641 + 31 = 9672
Step 313: 9672 + 31 = 9703
Step 314: 9703 + 31 = 9734
Step 315: 9734 + 31 = 9765
Step 316: 9765 + 31 = 9796
Step 317: 9796 + 31 = 9827
Step 318: 9827 + 31 = 9858
Step 319: 9858 + 31 = 9889
Step 320: 9889 + 31 = 9920
Step 321: 9920 + 31 = 9951
Step 322: 9951 + 31 = 9982
Step 323: 9982 + 31 = 10013
Step 324: 10013 + 31 = 10044
Step 325: 10044 + 31 = 10075
Step 326: 10075 + 31 = 10106
Step 327: 10106 + 31 = 10137
Step 328: 10137 + 31 = 10168
Step 329: 10168 + 31 = 10199
Step 330: 10199 + 31 = 10230
Step 331: 10230 + 31 = 10261
Step 332: 10261 + 31 = 10292
Step 333: 10292 + 31 = 10323
Step 334: 10323 + 31 = 10354
Step 335: 10354 + 31 = 10385
Step 336: 10385 + 31 = 10416
Step 337: 10416 + 31 = 10447
Step 338: 10447 + 31 = 10478
Step 339: 10478 + 31 = 10509
Step 340: 10509 + 31 = 10540
Step 341: 10540 + 31 = 10571
Step 342: 10571 + 31 = 10602
Step 343: 10602 + 31 = 10633
Step 344: 10633 + 31 = 10664
Step 345: 10664 + 31 = 10695
Step 346: 10695 + 31 = 10726
Step 347: 10726 + 31 = 10757
Step 348: 10757 + 31 = 10788
Step 349: 10788 + 31 = 10819
Step 350: 10819 + 31 = 10850
Step 351: 10850 + 31 = 10881
Step 352: 10881 + 31 = 10912
Step 353: 10912 + 31 = 10943
Step 354: 10943 + 31 = 10974
Step 355: 10974 + 31 = 11005
Step 356: 11005 + 31 = 11036
Step 357: 11036 + 31 = 11067
Step 358: 11067 + 31 = 11098
Step 359: 11098 + 31 = 11129
Step 360: 11129 + 31 = 11160
Step 361: 11160 + 31 = 11191
Step 362: 11191 + 31 = 11222
Step 363: 11222 + 31 = 11253
Step 364: 11253 + 31 = 11284
Step 365: 11284 + 31 = 11315
Step 366: 11315 + 31 = 11346
Step 367: 11346 + 31 = 11377
Step 368: 11377 + 31 = 11408
Step 369: 11408 + 31 = 11439
Step 370: 11439 + 31 = 11470
Step 371: 11470 + 31 = 11501
Step 372: 11501 + 31 = 11532
Step 373: 11532 + 31 = 11563
Step 374: 11563 + 31 = 11594
Step 375: 11594 + 31 = 11625
Step 376: 11625 + 31 = 11656
Step 377: 11656 + 31 = 11687
Step 378: 11687 + 31 = 11718
Step 379: 11718 + 31 = 11749
Step 380: 11749 + 31 = 11780
Step 381: 11780 + 31 = 11811
Step 382: 11811 + 31 = 11842
Step 383: 11842 + 31 = 11873
Step 384: 11873 + 31 = 11904
Step 385: 11904 + 31 = 11935
Step 386: 11935 + 31 = 11966
Step 387: 11966 + 31 = 11997
Step 388: 11997 + 31 = 12028
Step 389: 12028 + 31 = 12059
Step 390: 12059 + 31 = 12090
Step 391: 12090 + 31 = 12121
Step 392: 12121 + 31 = 12152
Step 393: 12152 + 31 = 12183
Step 394: 12183 + 31 = 12214
Step 395: 12214 + 31 = 12245
Step 396: 12245 + 31 = 12276
Step 397: 12276 + 31 = 12307
Step 398: 12307 + 31 = 12338
Step 399: 12338 + 31 = 12369
Step 400: 12369 + 31 = 12400
Step 401: 12400 + 31 = 12431
Step 402: 12431 + 31 = 12462
Step 403: 12462 + 31 = 12493
Step 404: 12493 + 31 = 12524
Step 405: 12524 + 31 = 12555
Step 406: 12555 + 31 = 12586
Step 407: 12586 + 31 = 12617
Step 408: 12617 + 31 = 12648
Step 409: 12648 + 31 = 12679
Step 410: 12679 + 31 = 12710
Step 411: 12710 + 31 = 12741
Step 412: 12741 + 31 = 12772
Step 413: 12772 + 31 = 12803
Step 414: 12803 + 31 = 12834
Step 415: 12834 + 31 = 12865
Step 416: 12865 + 31 = 12896
Step 417: 12896 + 31 = 12927
Step 418: 12927 + 31 = 12958
Step 419: 12958 + 31 = 12989
Step 420: 12989 + 31 = 13020
Step 421: 13020 + 31 = 13051
Step 422: 13051 + 31 = 13082
Step 423: 13082 + 31 = 13113
Step 424: 13113 + 31 = 13144
Step 425: 13144 + 31 = 13175
Step 426: 13175 + 31 = 13206
Step 427: 13206 + 31 = 13237
Step 428: 13237 + 31 = 13268
Step 429: 13268 + 31 = 13299
Step 430: 13299 + 31 = 13330
Step 431: 13330 + 31 = 13361
Step 432: 13361 + 31 = 13392
Step 433: 13392 + 31 = 13423
Step 434: 13423 + 31 = 13454
Step 435: 13454 + 31 = 13485
Step 436: 13485 + 31 = 13516
Step 437: 13516 + 31 = 13547
Step 438: 13547 + 31 = 13578
Step 439: 13578 + 31 = 13609
Step 440: 13609 + 31 = 13640
Step 441: 13640 + 31 = 13671
Step 442: 13671 + 31 = 13702
Step 443: 13702 + 31 = 13733
Step 444: 13733 + 31 = 13764
Step 445: 13764 + 31 = 13795
Step 446: 13795 + 31 = 13826
Step 447: 13826 + 31 = 13857
Step 448: 13857 + 31 = 13888
Step 449: 13888 + 31 = 13919
Step 450: 13919 + 31 = 13950
Step 451: 13950 + 31 = 13981
Step 452: 13981 + 31 = 14012
Step 453: 14012 + 31 = 14043
Step 454: 14043 + 31 = 14074
Step 455: 14074 + 31 = 14105
Step 456: 14105 + 31 = 14136
Step 457: 14136 + 31 = 14167
Step 458: 14167 + 31 = 14198
Step 459: 14198 + 31 = 14229
Step 460: 14229 + 31 = 14260
Step 461: 14260 + 31 = 14291
Step 462: 14291 + 31 = 14322
Step 463: 14322 + 31 = 14353
Step 464: 14353 + 31 = 14384
Step 465: 14384 + 31 = 14415
Step 466: 14415 + 31 = 14446
Step 467: 14446 + 31 = 14477
Step 468: 14477 + 31 = 14508
Step 469: 14508 + 31 = 14539
Step 470: 14539 + 31 = 14570
Step 471: 14570 + 31 = 14601
Step 472: 14601 + 31 = 14632
Step 473: 14632 + 31 = 14663
Step 474: 14663 + 31 = 14694
Step 475: 14694 + 31 = 14725
Step 476: 14725 + 31 = 14756
Step 477: 14756 + 31 = 14787
Step 478: 14787 + 31 = 14818
Step 479: 14818 + 31 = 14849
Step 480: 14849 + 31 = 14880
Step 481: 14880 + 31 = 14911
Step 482: 14911 + 31 = 14942
Step 483: 14942 + 31 = 14973
Step 484: 14973 + 31 = 15004
Step 485: 15004 + 31 = 15035
Step 486: 15035 + 31 = 15066

So, 31*486 = 15066