Alright, let's solve this math problem step by step. First, we have the number 387. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 289. So, we're going to take the number 387 and add it to itself 289 times.
Step 1: 0 + 387 = 387
Step 2: 387 + 387 = 774
Step 3: 774 + 387 = 1161
Step 4: 1161 + 387 = 1548
Step 5: 1548 + 387 = 1935
Step 6: 1935 + 387 = 2322
Step 7: 2322 + 387 = 2709
Step 8: 2709 + 387 = 3096
Step 9: 3096 + 387 = 3483
Step 10: 3483 + 387 = 3870
Step 11: 3870 + 387 = 4257
Step 12: 4257 + 387 = 4644
Step 13: 4644 + 387 = 5031
Step 14: 5031 + 387 = 5418
Step 15: 5418 + 387 = 5805
Step 16: 5805 + 387 = 6192
Step 17: 6192 + 387 = 6579
Step 18: 6579 + 387 = 6966
Step 19: 6966 + 387 = 7353
Step 20: 7353 + 387 = 7740
Step 21: 7740 + 387 = 8127
Step 22: 8127 + 387 = 8514
Step 23: 8514 + 387 = 8901
Step 24: 8901 + 387 = 9288
Step 25: 9288 + 387 = 9675
Step 26: 9675 + 387 = 10062
Step 27: 10062 + 387 = 10449
Step 28: 10449 + 387 = 10836
Step 29: 10836 + 387 = 11223
Step 30: 11223 + 387 = 11610
Step 31: 11610 + 387 = 11997
Step 32: 11997 + 387 = 12384
Step 33: 12384 + 387 = 12771
Step 34: 12771 + 387 = 13158
Step 35: 13158 + 387 = 13545
Step 36: 13545 + 387 = 13932
Step 37: 13932 + 387 = 14319
Step 38: 14319 + 387 = 14706
Step 39: 14706 + 387 = 15093
Step 40: 15093 + 387 = 15480
Step 41: 15480 + 387 = 15867
Step 42: 15867 + 387 = 16254
Step 43: 16254 + 387 = 16641
Step 44: 16641 + 387 = 17028
Step 45: 17028 + 387 = 17415
Step 46: 17415 + 387 = 17802
Step 47: 17802 + 387 = 18189
Step 48: 18189 + 387 = 18576
Step 49: 18576 + 387 = 18963
Step 50: 18963 + 387 = 19350
Step 51: 19350 + 387 = 19737
Step 52: 19737 + 387 = 20124
Step 53: 20124 + 387 = 20511
Step 54: 20511 + 387 = 20898
Step 55: 20898 + 387 = 21285
Step 56: 21285 + 387 = 21672
Step 57: 21672 + 387 = 22059
Step 58: 22059 + 387 = 22446
Step 59: 22446 + 387 = 22833
Step 60: 22833 + 387 = 23220
Step 61: 23220 + 387 = 23607
Step 62: 23607 + 387 = 23994
Step 63: 23994 + 387 = 24381
Step 64: 24381 + 387 = 24768
Step 65: 24768 + 387 = 25155
Step 66: 25155 + 387 = 25542
Step 67: 25542 + 387 = 25929
Step 68: 25929 + 387 = 26316
Step 69: 26316 + 387 = 26703
Step 70: 26703 + 387 = 27090
Step 71: 27090 + 387 = 27477
Step 72: 27477 + 387 = 27864
Step 73: 27864 + 387 = 28251
Step 74: 28251 + 387 = 28638
Step 75: 28638 + 387 = 29025
Step 76: 29025 + 387 = 29412
Step 77: 29412 + 387 = 29799
Step 78: 29799 + 387 = 30186
Step 79: 30186 + 387 = 30573
Step 80: 30573 + 387 = 30960
Step 81: 30960 + 387 = 31347
Step 82: 31347 + 387 = 31734
Step 83: 31734 + 387 = 32121
Step 84: 32121 + 387 = 32508
Step 85: 32508 + 387 = 32895
Step 86: 32895 + 387 = 33282
Step 87: 33282 + 387 = 33669
Step 88: 33669 + 387 = 34056
Step 89: 34056 + 387 = 34443
Step 90: 34443 + 387 = 34830
Step 91: 34830 + 387 = 35217
Step 92: 35217 + 387 = 35604
Step 93: 35604 + 387 = 35991
Step 94: 35991 + 387 = 36378
Step 95: 36378 + 387 = 36765
Step 96: 36765 + 387 = 37152
Step 97: 37152 + 387 = 37539
Step 98: 37539 + 387 = 37926
Step 99: 37926 + 387 = 38313
Step 100: 38313 + 387 = 38700
Step 101: 38700 + 387 = 39087
Step 102: 39087 + 387 = 39474
Step 103: 39474 + 387 = 39861
Step 104: 39861 + 387 = 40248
Step 105: 40248 + 387 = 40635
Step 106: 40635 + 387 = 41022
Step 107: 41022 + 387 = 41409
Step 108: 41409 + 387 = 41796
Step 109: 41796 + 387 = 42183
Step 110: 42183 + 387 = 42570
Step 111: 42570 + 387 = 42957
Step 112: 42957 + 387 = 43344
Step 113: 43344 + 387 = 43731
Step 114: 43731 + 387 = 44118
Step 115: 44118 + 387 = 44505
Step 116: 44505 + 387 = 44892
Step 117: 44892 + 387 = 45279
Step 118: 45279 + 387 = 45666
Step 119: 45666 + 387 = 46053
Step 120: 46053 + 387 = 46440
Step 121: 46440 + 387 = 46827
Step 122: 46827 + 387 = 47214
Step 123: 47214 + 387 = 47601
Step 124: 47601 + 387 = 47988
Step 125: 47988 + 387 = 48375
Step 126: 48375 + 387 = 48762
Step 127: 48762 + 387 = 49149
Step 128: 49149 + 387 = 49536
Step 129: 49536 + 387 = 49923
Step 130: 49923 + 387 = 50310
Step 131: 50310 + 387 = 50697
Step 132: 50697 + 387 = 51084
Step 133: 51084 + 387 = 51471
Step 134: 51471 + 387 = 51858
Step 135: 51858 + 387 = 52245
Step 136: 52245 + 387 = 52632
Step 137: 52632 + 387 = 53019
Step 138: 53019 + 387 = 53406
Step 139: 53406 + 387 = 53793
Step 140: 53793 + 387 = 54180
Step 141: 54180 + 387 = 54567
Step 142: 54567 + 387 = 54954
Step 143: 54954 + 387 = 55341
Step 144: 55341 + 387 = 55728
Step 145: 55728 + 387 = 56115
Step 146: 56115 + 387 = 56502
Step 147: 56502 + 387 = 56889
Step 148: 56889 + 387 = 57276
Step 149: 57276 + 387 = 57663
Step 150: 57663 + 387 = 58050
Step 151: 58050 + 387 = 58437
Step 152: 58437 + 387 = 58824
Step 153: 58824 + 387 = 59211
Step 154: 59211 + 387 = 59598
Step 155: 59598 + 387 = 59985
Step 156: 59985 + 387 = 60372
Step 157: 60372 + 387 = 60759
Step 158: 60759 + 387 = 61146
Step 159: 61146 + 387 = 61533
Step 160: 61533 + 387 = 61920
Step 161: 61920 + 387 = 62307
Step 162: 62307 + 387 = 62694
Step 163: 62694 + 387 = 63081
Step 164: 63081 + 387 = 63468
Step 165: 63468 + 387 = 63855
Step 166: 63855 + 387 = 64242
Step 167: 64242 + 387 = 64629
Step 168: 64629 + 387 = 65016
Step 169: 65016 + 387 = 65403
Step 170: 65403 + 387 = 65790
Step 171: 65790 + 387 = 66177
Step 172: 66177 + 387 = 66564
Step 173: 66564 + 387 = 66951
Step 174: 66951 + 387 = 67338
Step 175: 67338 + 387 = 67725
Step 176: 67725 + 387 = 68112
Step 177: 68112 + 387 = 68499
Step 178: 68499 + 387 = 68886
Step 179: 68886 + 387 = 69273
Step 180: 69273 + 387 = 69660
Step 181: 69660 + 387 = 70047
Step 182: 70047 + 387 = 70434
Step 183: 70434 + 387 = 70821
Step 184: 70821 + 387 = 71208
Step 185: 71208 + 387 = 71595
Step 186: 71595 + 387 = 71982
Step 187: 71982 + 387 = 72369
Step 188: 72369 + 387 = 72756
Step 189: 72756 + 387 = 73143
Step 190: 73143 + 387 = 73530
Step 191: 73530 + 387 = 73917
Step 192: 73917 + 387 = 74304
Step 193: 74304 + 387 = 74691
Step 194: 74691 + 387 = 75078
Step 195: 75078 + 387 = 75465
Step 196: 75465 + 387 = 75852
Step 197: 75852 + 387 = 76239
Step 198: 76239 + 387 = 76626
Step 199: 76626 + 387 = 77013
Step 200: 77013 + 387 = 77400
Step 201: 77400 + 387 = 77787
Step 202: 77787 + 387 = 78174
Step 203: 78174 + 387 = 78561
Step 204: 78561 + 387 = 78948
Step 205: 78948 + 387 = 79335
Step 206: 79335 + 387 = 79722
Step 207: 79722 + 387 = 80109
Step 208: 80109 + 387 = 80496
Step 209: 80496 + 387 = 80883
Step 210: 80883 + 387 = 81270
Step 211: 81270 + 387 = 81657
Step 212: 81657 + 387 = 82044
Step 213: 82044 + 387 = 82431
Step 214: 82431 + 387 = 82818
Step 215: 82818 + 387 = 83205
Step 216: 83205 + 387 = 83592
Step 217: 83592 + 387 = 83979
Step 218: 83979 + 387 = 84366
Step 219: 84366 + 387 = 84753
Step 220: 84753 + 387 = 85140
Step 221: 85140 + 387 = 85527
Step 222: 85527 + 387 = 85914
Step 223: 85914 + 387 = 86301
Step 224: 86301 + 387 = 86688
Step 225: 86688 + 387 = 87075
Step 226: 87075 + 387 = 87462
Step 227: 87462 + 387 = 87849
Step 228: 87849 + 387 = 88236
Step 229: 88236 + 387 = 88623
Step 230: 88623 + 387 = 89010
Step 231: 89010 + 387 = 89397
Step 232: 89397 + 387 = 89784
Step 233: 89784 + 387 = 90171
Step 234: 90171 + 387 = 90558
Step 235: 90558 + 387 = 90945
Step 236: 90945 + 387 = 91332
Step 237: 91332 + 387 = 91719
Step 238: 91719 + 387 = 92106
Step 239: 92106 + 387 = 92493
Step 240: 92493 + 387 = 92880
Step 241: 92880 + 387 = 93267
Step 242: 93267 + 387 = 93654
Step 243: 93654 + 387 = 94041
Step 244: 94041 + 387 = 94428
Step 245: 94428 + 387 = 94815
Step 246: 94815 + 387 = 95202
Step 247: 95202 + 387 = 95589
Step 248: 95589 + 387 = 95976
Step 249: 95976 + 387 = 96363
Step 250: 96363 + 387 = 96750
Step 251: 96750 + 387 = 97137
Step 252: 97137 + 387 = 97524
Step 253: 97524 + 387 = 97911
Step 254: 97911 + 387 = 98298
Step 255: 98298 + 387 = 98685
Step 256: 98685 + 387 = 99072
Step 257: 99072 + 387 = 99459
Step 258: 99459 + 387 = 99846
Step 259: 99846 + 387 = 100233
Step 260: 100233 + 387 = 100620
Step 261: 100620 + 387 = 101007
Step 262: 101007 + 387 = 101394
Step 263: 101394 + 387 = 101781
Step 264: 101781 + 387 = 102168
Step 265: 102168 + 387 = 102555
Step 266: 102555 + 387 = 102942
Step 267: 102942 + 387 = 103329
Step 268: 103329 + 387 = 103716
Step 269: 103716 + 387 = 104103
Step 270: 104103 + 387 = 104490
Step 271: 104490 + 387 = 104877
Step 272: 104877 + 387 = 105264
Step 273: 105264 + 387 = 105651
Step 274: 105651 + 387 = 106038
Step 275: 106038 + 387 = 106425
Step 276: 106425 + 387 = 106812
Step 277: 106812 + 387 = 107199
Step 278: 107199 + 387 = 107586
Step 279: 107586 + 387 = 107973
Step 280: 107973 + 387 = 108360
Step 281: 108360 + 387 = 108747
Step 282: 108747 + 387 = 109134
Step 283: 109134 + 387 = 109521
Step 284: 109521 + 387 = 109908
Step 285: 109908 + 387 = 110295
Step 286: 110295 + 387 = 110682
Step 287: 110682 + 387 = 111069
Step 288: 111069 + 387 = 111456
Step 289: 111456 + 387 = 111843

So, 387*289 = 111843