Without delay, let's solve this. We've got 86 and we will be multiplying it by 304, that is, adding 86 to itself 304 times.
Step 1: 0 + 86 = 86
Step 2: 86 + 86 = 172
Step 3: 172 + 86 = 258
Step 4: 258 + 86 = 344
Step 5: 344 + 86 = 430
Step 6: 430 + 86 = 516
Step 7: 516 + 86 = 602
Step 8: 602 + 86 = 688
Step 9: 688 + 86 = 774
Step 10: 774 + 86 = 860
Step 11: 860 + 86 = 946
Step 12: 946 + 86 = 1032
Step 13: 1032 + 86 = 1118
Step 14: 1118 + 86 = 1204
Step 15: 1204 + 86 = 1290
Step 16: 1290 + 86 = 1376
Step 17: 1376 + 86 = 1462
Step 18: 1462 + 86 = 1548
Step 19: 1548 + 86 = 1634
Step 20: 1634 + 86 = 1720
Step 21: 1720 + 86 = 1806
Step 22: 1806 + 86 = 1892
Step 23: 1892 + 86 = 1978
Step 24: 1978 + 86 = 2064
Step 25: 2064 + 86 = 2150
Step 26: 2150 + 86 = 2236
Step 27: 2236 + 86 = 2322
Step 28: 2322 + 86 = 2408
Step 29: 2408 + 86 = 2494
Step 30: 2494 + 86 = 2580
Step 31: 2580 + 86 = 2666
Step 32: 2666 + 86 = 2752
Step 33: 2752 + 86 = 2838
Step 34: 2838 + 86 = 2924
Step 35: 2924 + 86 = 3010
Step 36: 3010 + 86 = 3096
Step 37: 3096 + 86 = 3182
Step 38: 3182 + 86 = 3268
Step 39: 3268 + 86 = 3354
Step 40: 3354 + 86 = 3440
Step 41: 3440 + 86 = 3526
Step 42: 3526 + 86 = 3612
Step 43: 3612 + 86 = 3698
Step 44: 3698 + 86 = 3784
Step 45: 3784 + 86 = 3870
Step 46: 3870 + 86 = 3956
Step 47: 3956 + 86 = 4042
Step 48: 4042 + 86 = 4128
Step 49: 4128 + 86 = 4214
Step 50: 4214 + 86 = 4300
Step 51: 4300 + 86 = 4386
Step 52: 4386 + 86 = 4472
Step 53: 4472 + 86 = 4558
Step 54: 4558 + 86 = 4644
Step 55: 4644 + 86 = 4730
Step 56: 4730 + 86 = 4816
Step 57: 4816 + 86 = 4902
Step 58: 4902 + 86 = 4988
Step 59: 4988 + 86 = 5074
Step 60: 5074 + 86 = 5160
Step 61: 5160 + 86 = 5246
Step 62: 5246 + 86 = 5332
Step 63: 5332 + 86 = 5418
Step 64: 5418 + 86 = 5504
Step 65: 5504 + 86 = 5590
Step 66: 5590 + 86 = 5676
Step 67: 5676 + 86 = 5762
Step 68: 5762 + 86 = 5848
Step 69: 5848 + 86 = 5934
Step 70: 5934 + 86 = 6020
Step 71: 6020 + 86 = 6106
Step 72: 6106 + 86 = 6192
Step 73: 6192 + 86 = 6278
Step 74: 6278 + 86 = 6364
Step 75: 6364 + 86 = 6450
Step 76: 6450 + 86 = 6536
Step 77: 6536 + 86 = 6622
Step 78: 6622 + 86 = 6708
Step 79: 6708 + 86 = 6794
Step 80: 6794 + 86 = 6880
Step 81: 6880 + 86 = 6966
Step 82: 6966 + 86 = 7052
Step 83: 7052 + 86 = 7138
Step 84: 7138 + 86 = 7224
Step 85: 7224 + 86 = 7310
Step 86: 7310 + 86 = 7396
Step 87: 7396 + 86 = 7482
Step 88: 7482 + 86 = 7568
Step 89: 7568 + 86 = 7654
Step 90: 7654 + 86 = 7740
Step 91: 7740 + 86 = 7826
Step 92: 7826 + 86 = 7912
Step 93: 7912 + 86 = 7998
Step 94: 7998 + 86 = 8084
Step 95: 8084 + 86 = 8170
Step 96: 8170 + 86 = 8256
Step 97: 8256 + 86 = 8342
Step 98: 8342 + 86 = 8428
Step 99: 8428 + 86 = 8514
Step 100: 8514 + 86 = 8600
Step 101: 8600 + 86 = 8686
Step 102: 8686 + 86 = 8772
Step 103: 8772 + 86 = 8858
Step 104: 8858 + 86 = 8944
Step 105: 8944 + 86 = 9030
Step 106: 9030 + 86 = 9116
Step 107: 9116 + 86 = 9202
Step 108: 9202 + 86 = 9288
Step 109: 9288 + 86 = 9374
Step 110: 9374 + 86 = 9460
Step 111: 9460 + 86 = 9546
Step 112: 9546 + 86 = 9632
Step 113: 9632 + 86 = 9718
Step 114: 9718 + 86 = 9804
Step 115: 9804 + 86 = 9890
Step 116: 9890 + 86 = 9976
Step 117: 9976 + 86 = 10062
Step 118: 10062 + 86 = 10148
Step 119: 10148 + 86 = 10234
Step 120: 10234 + 86 = 10320
Step 121: 10320 + 86 = 10406
Step 122: 10406 + 86 = 10492
Step 123: 10492 + 86 = 10578
Step 124: 10578 + 86 = 10664
Step 125: 10664 + 86 = 10750
Step 126: 10750 + 86 = 10836
Step 127: 10836 + 86 = 10922
Step 128: 10922 + 86 = 11008
Step 129: 11008 + 86 = 11094
Step 130: 11094 + 86 = 11180
Step 131: 11180 + 86 = 11266
Step 132: 11266 + 86 = 11352
Step 133: 11352 + 86 = 11438
Step 134: 11438 + 86 = 11524
Step 135: 11524 + 86 = 11610
Step 136: 11610 + 86 = 11696
Step 137: 11696 + 86 = 11782
Step 138: 11782 + 86 = 11868
Step 139: 11868 + 86 = 11954
Step 140: 11954 + 86 = 12040
Step 141: 12040 + 86 = 12126
Step 142: 12126 + 86 = 12212
Step 143: 12212 + 86 = 12298
Step 144: 12298 + 86 = 12384
Step 145: 12384 + 86 = 12470
Step 146: 12470 + 86 = 12556
Step 147: 12556 + 86 = 12642
Step 148: 12642 + 86 = 12728
Step 149: 12728 + 86 = 12814
Step 150: 12814 + 86 = 12900
Step 151: 12900 + 86 = 12986
Step 152: 12986 + 86 = 13072
Step 153: 13072 + 86 = 13158
Step 154: 13158 + 86 = 13244
Step 155: 13244 + 86 = 13330
Step 156: 13330 + 86 = 13416
Step 157: 13416 + 86 = 13502
Step 158: 13502 + 86 = 13588
Step 159: 13588 + 86 = 13674
Step 160: 13674 + 86 = 13760
Step 161: 13760 + 86 = 13846
Step 162: 13846 + 86 = 13932
Step 163: 13932 + 86 = 14018
Step 164: 14018 + 86 = 14104
Step 165: 14104 + 86 = 14190
Step 166: 14190 + 86 = 14276
Step 167: 14276 + 86 = 14362
Step 168: 14362 + 86 = 14448
Step 169: 14448 + 86 = 14534
Step 170: 14534 + 86 = 14620
Step 171: 14620 + 86 = 14706
Step 172: 14706 + 86 = 14792
Step 173: 14792 + 86 = 14878
Step 174: 14878 + 86 = 14964
Step 175: 14964 + 86 = 15050
Step 176: 15050 + 86 = 15136
Step 177: 15136 + 86 = 15222
Step 178: 15222 + 86 = 15308
Step 179: 15308 + 86 = 15394
Step 180: 15394 + 86 = 15480
Step 181: 15480 + 86 = 15566
Step 182: 15566 + 86 = 15652
Step 183: 15652 + 86 = 15738
Step 184: 15738 + 86 = 15824
Step 185: 15824 + 86 = 15910
Step 186: 15910 + 86 = 15996
Step 187: 15996 + 86 = 16082
Step 188: 16082 + 86 = 16168
Step 189: 16168 + 86 = 16254
Step 190: 16254 + 86 = 16340
Step 191: 16340 + 86 = 16426
Step 192: 16426 + 86 = 16512
Step 193: 16512 + 86 = 16598
Step 194: 16598 + 86 = 16684
Step 195: 16684 + 86 = 16770
Step 196: 16770 + 86 = 16856
Step 197: 16856 + 86 = 16942
Step 198: 16942 + 86 = 17028
Step 199: 17028 + 86 = 17114
Step 200: 17114 + 86 = 17200
Step 201: 17200 + 86 = 17286
Step 202: 17286 + 86 = 17372
Step 203: 17372 + 86 = 17458
Step 204: 17458 + 86 = 17544
Step 205: 17544 + 86 = 17630
Step 206: 17630 + 86 = 17716
Step 207: 17716 + 86 = 17802
Step 208: 17802 + 86 = 17888
Step 209: 17888 + 86 = 17974
Step 210: 17974 + 86 = 18060
Step 211: 18060 + 86 = 18146
Step 212: 18146 + 86 = 18232
Step 213: 18232 + 86 = 18318
Step 214: 18318 + 86 = 18404
Step 215: 18404 + 86 = 18490
Step 216: 18490 + 86 = 18576
Step 217: 18576 + 86 = 18662
Step 218: 18662 + 86 = 18748
Step 219: 18748 + 86 = 18834
Step 220: 18834 + 86 = 18920
Step 221: 18920 + 86 = 19006
Step 222: 19006 + 86 = 19092
Step 223: 19092 + 86 = 19178
Step 224: 19178 + 86 = 19264
Step 225: 19264 + 86 = 19350
Step 226: 19350 + 86 = 19436
Step 227: 19436 + 86 = 19522
Step 228: 19522 + 86 = 19608
Step 229: 19608 + 86 = 19694
Step 230: 19694 + 86 = 19780
Step 231: 19780 + 86 = 19866
Step 232: 19866 + 86 = 19952
Step 233: 19952 + 86 = 20038
Step 234: 20038 + 86 = 20124
Step 235: 20124 + 86 = 20210
Step 236: 20210 + 86 = 20296
Step 237: 20296 + 86 = 20382
Step 238: 20382 + 86 = 20468
Step 239: 20468 + 86 = 20554
Step 240: 20554 + 86 = 20640
Step 241: 20640 + 86 = 20726
Step 242: 20726 + 86 = 20812
Step 243: 20812 + 86 = 20898
Step 244: 20898 + 86 = 20984
Step 245: 20984 + 86 = 21070
Step 246: 21070 + 86 = 21156
Step 247: 21156 + 86 = 21242
Step 248: 21242 + 86 = 21328
Step 249: 21328 + 86 = 21414
Step 250: 21414 + 86 = 21500
Step 251: 21500 + 86 = 21586
Step 252: 21586 + 86 = 21672
Step 253: 21672 + 86 = 21758
Step 254: 21758 + 86 = 21844
Step 255: 21844 + 86 = 21930
Step 256: 21930 + 86 = 22016
Step 257: 22016 + 86 = 22102
Step 258: 22102 + 86 = 22188
Step 259: 22188 + 86 = 22274
Step 260: 22274 + 86 = 22360
Step 261: 22360 + 86 = 22446
Step 262: 22446 + 86 = 22532
Step 263: 22532 + 86 = 22618
Step 264: 22618 + 86 = 22704
Step 265: 22704 + 86 = 22790
Step 266: 22790 + 86 = 22876
Step 267: 22876 + 86 = 22962
Step 268: 22962 + 86 = 23048
Step 269: 23048 + 86 = 23134
Step 270: 23134 + 86 = 23220
Step 271: 23220 + 86 = 23306
Step 272: 23306 + 86 = 23392
Step 273: 23392 + 86 = 23478
Step 274: 23478 + 86 = 23564
Step 275: 23564 + 86 = 23650
Step 276: 23650 + 86 = 23736
Step 277: 23736 + 86 = 23822
Step 278: 23822 + 86 = 23908
Step 279: 23908 + 86 = 23994
Step 280: 23994 + 86 = 24080
Step 281: 24080 + 86 = 24166
Step 282: 24166 + 86 = 24252
Step 283: 24252 + 86 = 24338
Step 284: 24338 + 86 = 24424
Step 285: 24424 + 86 = 24510
Step 286: 24510 + 86 = 24596
Step 287: 24596 + 86 = 24682
Step 288: 24682 + 86 = 24768
Step 289: 24768 + 86 = 24854
Step 290: 24854 + 86 = 24940
Step 291: 24940 + 86 = 25026
Step 292: 25026 + 86 = 25112
Step 293: 25112 + 86 = 25198
Step 294: 25198 + 86 = 25284
Step 295: 25284 + 86 = 25370
Step 296: 25370 + 86 = 25456
Step 297: 25456 + 86 = 25542
Step 298: 25542 + 86 = 25628
Step 299: 25628 + 86 = 25714
Step 300: 25714 + 86 = 25800
Step 301: 25800 + 86 = 25886
Step 302: 25886 + 86 = 25972
Step 303: 25972 + 86 = 26058
Step 304: 26058 + 86 = 26144

So, 86*304 = 26144