Without delay, let's solve this. We've got 251 and we will be multiplying it by 310, that is, adding 251 to itself 310 times.
Step 1: 0 + 251 = 251
Step 2: 251 + 251 = 502
Step 3: 502 + 251 = 753
Step 4: 753 + 251 = 1004
Step 5: 1004 + 251 = 1255
Step 6: 1255 + 251 = 1506
Step 7: 1506 + 251 = 1757
Step 8: 1757 + 251 = 2008
Step 9: 2008 + 251 = 2259
Step 10: 2259 + 251 = 2510
Step 11: 2510 + 251 = 2761
Step 12: 2761 + 251 = 3012
Step 13: 3012 + 251 = 3263
Step 14: 3263 + 251 = 3514
Step 15: 3514 + 251 = 3765
Step 16: 3765 + 251 = 4016
Step 17: 4016 + 251 = 4267
Step 18: 4267 + 251 = 4518
Step 19: 4518 + 251 = 4769
Step 20: 4769 + 251 = 5020
Step 21: 5020 + 251 = 5271
Step 22: 5271 + 251 = 5522
Step 23: 5522 + 251 = 5773
Step 24: 5773 + 251 = 6024
Step 25: 6024 + 251 = 6275
Step 26: 6275 + 251 = 6526
Step 27: 6526 + 251 = 6777
Step 28: 6777 + 251 = 7028
Step 29: 7028 + 251 = 7279
Step 30: 7279 + 251 = 7530
Step 31: 7530 + 251 = 7781
Step 32: 7781 + 251 = 8032
Step 33: 8032 + 251 = 8283
Step 34: 8283 + 251 = 8534
Step 35: 8534 + 251 = 8785
Step 36: 8785 + 251 = 9036
Step 37: 9036 + 251 = 9287
Step 38: 9287 + 251 = 9538
Step 39: 9538 + 251 = 9789
Step 40: 9789 + 251 = 10040
Step 41: 10040 + 251 = 10291
Step 42: 10291 + 251 = 10542
Step 43: 10542 + 251 = 10793
Step 44: 10793 + 251 = 11044
Step 45: 11044 + 251 = 11295
Step 46: 11295 + 251 = 11546
Step 47: 11546 + 251 = 11797
Step 48: 11797 + 251 = 12048
Step 49: 12048 + 251 = 12299
Step 50: 12299 + 251 = 12550
Step 51: 12550 + 251 = 12801
Step 52: 12801 + 251 = 13052
Step 53: 13052 + 251 = 13303
Step 54: 13303 + 251 = 13554
Step 55: 13554 + 251 = 13805
Step 56: 13805 + 251 = 14056
Step 57: 14056 + 251 = 14307
Step 58: 14307 + 251 = 14558
Step 59: 14558 + 251 = 14809
Step 60: 14809 + 251 = 15060
Step 61: 15060 + 251 = 15311
Step 62: 15311 + 251 = 15562
Step 63: 15562 + 251 = 15813
Step 64: 15813 + 251 = 16064
Step 65: 16064 + 251 = 16315
Step 66: 16315 + 251 = 16566
Step 67: 16566 + 251 = 16817
Step 68: 16817 + 251 = 17068
Step 69: 17068 + 251 = 17319
Step 70: 17319 + 251 = 17570
Step 71: 17570 + 251 = 17821
Step 72: 17821 + 251 = 18072
Step 73: 18072 + 251 = 18323
Step 74: 18323 + 251 = 18574
Step 75: 18574 + 251 = 18825
Step 76: 18825 + 251 = 19076
Step 77: 19076 + 251 = 19327
Step 78: 19327 + 251 = 19578
Step 79: 19578 + 251 = 19829
Step 80: 19829 + 251 = 20080
Step 81: 20080 + 251 = 20331
Step 82: 20331 + 251 = 20582
Step 83: 20582 + 251 = 20833
Step 84: 20833 + 251 = 21084
Step 85: 21084 + 251 = 21335
Step 86: 21335 + 251 = 21586
Step 87: 21586 + 251 = 21837
Step 88: 21837 + 251 = 22088
Step 89: 22088 + 251 = 22339
Step 90: 22339 + 251 = 22590
Step 91: 22590 + 251 = 22841
Step 92: 22841 + 251 = 23092
Step 93: 23092 + 251 = 23343
Step 94: 23343 + 251 = 23594
Step 95: 23594 + 251 = 23845
Step 96: 23845 + 251 = 24096
Step 97: 24096 + 251 = 24347
Step 98: 24347 + 251 = 24598
Step 99: 24598 + 251 = 24849
Step 100: 24849 + 251 = 25100
Step 101: 25100 + 251 = 25351
Step 102: 25351 + 251 = 25602
Step 103: 25602 + 251 = 25853
Step 104: 25853 + 251 = 26104
Step 105: 26104 + 251 = 26355
Step 106: 26355 + 251 = 26606
Step 107: 26606 + 251 = 26857
Step 108: 26857 + 251 = 27108
Step 109: 27108 + 251 = 27359
Step 110: 27359 + 251 = 27610
Step 111: 27610 + 251 = 27861
Step 112: 27861 + 251 = 28112
Step 113: 28112 + 251 = 28363
Step 114: 28363 + 251 = 28614
Step 115: 28614 + 251 = 28865
Step 116: 28865 + 251 = 29116
Step 117: 29116 + 251 = 29367
Step 118: 29367 + 251 = 29618
Step 119: 29618 + 251 = 29869
Step 120: 29869 + 251 = 30120
Step 121: 30120 + 251 = 30371
Step 122: 30371 + 251 = 30622
Step 123: 30622 + 251 = 30873
Step 124: 30873 + 251 = 31124
Step 125: 31124 + 251 = 31375
Step 126: 31375 + 251 = 31626
Step 127: 31626 + 251 = 31877
Step 128: 31877 + 251 = 32128
Step 129: 32128 + 251 = 32379
Step 130: 32379 + 251 = 32630
Step 131: 32630 + 251 = 32881
Step 132: 32881 + 251 = 33132
Step 133: 33132 + 251 = 33383
Step 134: 33383 + 251 = 33634
Step 135: 33634 + 251 = 33885
Step 136: 33885 + 251 = 34136
Step 137: 34136 + 251 = 34387
Step 138: 34387 + 251 = 34638
Step 139: 34638 + 251 = 34889
Step 140: 34889 + 251 = 35140
Step 141: 35140 + 251 = 35391
Step 142: 35391 + 251 = 35642
Step 143: 35642 + 251 = 35893
Step 144: 35893 + 251 = 36144
Step 145: 36144 + 251 = 36395
Step 146: 36395 + 251 = 36646
Step 147: 36646 + 251 = 36897
Step 148: 36897 + 251 = 37148
Step 149: 37148 + 251 = 37399
Step 150: 37399 + 251 = 37650
Step 151: 37650 + 251 = 37901
Step 152: 37901 + 251 = 38152
Step 153: 38152 + 251 = 38403
Step 154: 38403 + 251 = 38654
Step 155: 38654 + 251 = 38905
Step 156: 38905 + 251 = 39156
Step 157: 39156 + 251 = 39407
Step 158: 39407 + 251 = 39658
Step 159: 39658 + 251 = 39909
Step 160: 39909 + 251 = 40160
Step 161: 40160 + 251 = 40411
Step 162: 40411 + 251 = 40662
Step 163: 40662 + 251 = 40913
Step 164: 40913 + 251 = 41164
Step 165: 41164 + 251 = 41415
Step 166: 41415 + 251 = 41666
Step 167: 41666 + 251 = 41917
Step 168: 41917 + 251 = 42168
Step 169: 42168 + 251 = 42419
Step 170: 42419 + 251 = 42670
Step 171: 42670 + 251 = 42921
Step 172: 42921 + 251 = 43172
Step 173: 43172 + 251 = 43423
Step 174: 43423 + 251 = 43674
Step 175: 43674 + 251 = 43925
Step 176: 43925 + 251 = 44176
Step 177: 44176 + 251 = 44427
Step 178: 44427 + 251 = 44678
Step 179: 44678 + 251 = 44929
Step 180: 44929 + 251 = 45180
Step 181: 45180 + 251 = 45431
Step 182: 45431 + 251 = 45682
Step 183: 45682 + 251 = 45933
Step 184: 45933 + 251 = 46184
Step 185: 46184 + 251 = 46435
Step 186: 46435 + 251 = 46686
Step 187: 46686 + 251 = 46937
Step 188: 46937 + 251 = 47188
Step 189: 47188 + 251 = 47439
Step 190: 47439 + 251 = 47690
Step 191: 47690 + 251 = 47941
Step 192: 47941 + 251 = 48192
Step 193: 48192 + 251 = 48443
Step 194: 48443 + 251 = 48694
Step 195: 48694 + 251 = 48945
Step 196: 48945 + 251 = 49196
Step 197: 49196 + 251 = 49447
Step 198: 49447 + 251 = 49698
Step 199: 49698 + 251 = 49949
Step 200: 49949 + 251 = 50200
Step 201: 50200 + 251 = 50451
Step 202: 50451 + 251 = 50702
Step 203: 50702 + 251 = 50953
Step 204: 50953 + 251 = 51204
Step 205: 51204 + 251 = 51455
Step 206: 51455 + 251 = 51706
Step 207: 51706 + 251 = 51957
Step 208: 51957 + 251 = 52208
Step 209: 52208 + 251 = 52459
Step 210: 52459 + 251 = 52710
Step 211: 52710 + 251 = 52961
Step 212: 52961 + 251 = 53212
Step 213: 53212 + 251 = 53463
Step 214: 53463 + 251 = 53714
Step 215: 53714 + 251 = 53965
Step 216: 53965 + 251 = 54216
Step 217: 54216 + 251 = 54467
Step 218: 54467 + 251 = 54718
Step 219: 54718 + 251 = 54969
Step 220: 54969 + 251 = 55220
Step 221: 55220 + 251 = 55471
Step 222: 55471 + 251 = 55722
Step 223: 55722 + 251 = 55973
Step 224: 55973 + 251 = 56224
Step 225: 56224 + 251 = 56475
Step 226: 56475 + 251 = 56726
Step 227: 56726 + 251 = 56977
Step 228: 56977 + 251 = 57228
Step 229: 57228 + 251 = 57479
Step 230: 57479 + 251 = 57730
Step 231: 57730 + 251 = 57981
Step 232: 57981 + 251 = 58232
Step 233: 58232 + 251 = 58483
Step 234: 58483 + 251 = 58734
Step 235: 58734 + 251 = 58985
Step 236: 58985 + 251 = 59236
Step 237: 59236 + 251 = 59487
Step 238: 59487 + 251 = 59738
Step 239: 59738 + 251 = 59989
Step 240: 59989 + 251 = 60240
Step 241: 60240 + 251 = 60491
Step 242: 60491 + 251 = 60742
Step 243: 60742 + 251 = 60993
Step 244: 60993 + 251 = 61244
Step 245: 61244 + 251 = 61495
Step 246: 61495 + 251 = 61746
Step 247: 61746 + 251 = 61997
Step 248: 61997 + 251 = 62248
Step 249: 62248 + 251 = 62499
Step 250: 62499 + 251 = 62750
Step 251: 62750 + 251 = 63001
Step 252: 63001 + 251 = 63252
Step 253: 63252 + 251 = 63503
Step 254: 63503 + 251 = 63754
Step 255: 63754 + 251 = 64005
Step 256: 64005 + 251 = 64256
Step 257: 64256 + 251 = 64507
Step 258: 64507 + 251 = 64758
Step 259: 64758 + 251 = 65009
Step 260: 65009 + 251 = 65260
Step 261: 65260 + 251 = 65511
Step 262: 65511 + 251 = 65762
Step 263: 65762 + 251 = 66013
Step 264: 66013 + 251 = 66264
Step 265: 66264 + 251 = 66515
Step 266: 66515 + 251 = 66766
Step 267: 66766 + 251 = 67017
Step 268: 67017 + 251 = 67268
Step 269: 67268 + 251 = 67519
Step 270: 67519 + 251 = 67770
Step 271: 67770 + 251 = 68021
Step 272: 68021 + 251 = 68272
Step 273: 68272 + 251 = 68523
Step 274: 68523 + 251 = 68774
Step 275: 68774 + 251 = 69025
Step 276: 69025 + 251 = 69276
Step 277: 69276 + 251 = 69527
Step 278: 69527 + 251 = 69778
Step 279: 69778 + 251 = 70029
Step 280: 70029 + 251 = 70280
Step 281: 70280 + 251 = 70531
Step 282: 70531 + 251 = 70782
Step 283: 70782 + 251 = 71033
Step 284: 71033 + 251 = 71284
Step 285: 71284 + 251 = 71535
Step 286: 71535 + 251 = 71786
Step 287: 71786 + 251 = 72037
Step 288: 72037 + 251 = 72288
Step 289: 72288 + 251 = 72539
Step 290: 72539 + 251 = 72790
Step 291: 72790 + 251 = 73041
Step 292: 73041 + 251 = 73292
Step 293: 73292 + 251 = 73543
Step 294: 73543 + 251 = 73794
Step 295: 73794 + 251 = 74045
Step 296: 74045 + 251 = 74296
Step 297: 74296 + 251 = 74547
Step 298: 74547 + 251 = 74798
Step 299: 74798 + 251 = 75049
Step 300: 75049 + 251 = 75300
Step 301: 75300 + 251 = 75551
Step 302: 75551 + 251 = 75802
Step 303: 75802 + 251 = 76053
Step 304: 76053 + 251 = 76304
Step 305: 76304 + 251 = 76555
Step 306: 76555 + 251 = 76806
Step 307: 76806 + 251 = 77057
Step 308: 77057 + 251 = 77308
Step 309: 77308 + 251 = 77559
Step 310: 77559 + 251 = 77810

So, 251*310 = 77810