Sure thing! We've got 79 and we're gonna multiply it by 339. That's the same as adding 79 to itself 339 times.
Step 1: 0 + 79 = 79
Step 2: 79 + 79 = 158
Step 3: 158 + 79 = 237
Step 4: 237 + 79 = 316
Step 5: 316 + 79 = 395
Step 6: 395 + 79 = 474
Step 7: 474 + 79 = 553
Step 8: 553 + 79 = 632
Step 9: 632 + 79 = 711
Step 10: 711 + 79 = 790
Step 11: 790 + 79 = 869
Step 12: 869 + 79 = 948
Step 13: 948 + 79 = 1027
Step 14: 1027 + 79 = 1106
Step 15: 1106 + 79 = 1185
Step 16: 1185 + 79 = 1264
Step 17: 1264 + 79 = 1343
Step 18: 1343 + 79 = 1422
Step 19: 1422 + 79 = 1501
Step 20: 1501 + 79 = 1580
Step 21: 1580 + 79 = 1659
Step 22: 1659 + 79 = 1738
Step 23: 1738 + 79 = 1817
Step 24: 1817 + 79 = 1896
Step 25: 1896 + 79 = 1975
Step 26: 1975 + 79 = 2054
Step 27: 2054 + 79 = 2133
Step 28: 2133 + 79 = 2212
Step 29: 2212 + 79 = 2291
Step 30: 2291 + 79 = 2370
Step 31: 2370 + 79 = 2449
Step 32: 2449 + 79 = 2528
Step 33: 2528 + 79 = 2607
Step 34: 2607 + 79 = 2686
Step 35: 2686 + 79 = 2765
Step 36: 2765 + 79 = 2844
Step 37: 2844 + 79 = 2923
Step 38: 2923 + 79 = 3002
Step 39: 3002 + 79 = 3081
Step 40: 3081 + 79 = 3160
Step 41: 3160 + 79 = 3239
Step 42: 3239 + 79 = 3318
Step 43: 3318 + 79 = 3397
Step 44: 3397 + 79 = 3476
Step 45: 3476 + 79 = 3555
Step 46: 3555 + 79 = 3634
Step 47: 3634 + 79 = 3713
Step 48: 3713 + 79 = 3792
Step 49: 3792 + 79 = 3871
Step 50: 3871 + 79 = 3950
Step 51: 3950 + 79 = 4029
Step 52: 4029 + 79 = 4108
Step 53: 4108 + 79 = 4187
Step 54: 4187 + 79 = 4266
Step 55: 4266 + 79 = 4345
Step 56: 4345 + 79 = 4424
Step 57: 4424 + 79 = 4503
Step 58: 4503 + 79 = 4582
Step 59: 4582 + 79 = 4661
Step 60: 4661 + 79 = 4740
Step 61: 4740 + 79 = 4819
Step 62: 4819 + 79 = 4898
Step 63: 4898 + 79 = 4977
Step 64: 4977 + 79 = 5056
Step 65: 5056 + 79 = 5135
Step 66: 5135 + 79 = 5214
Step 67: 5214 + 79 = 5293
Step 68: 5293 + 79 = 5372
Step 69: 5372 + 79 = 5451
Step 70: 5451 + 79 = 5530
Step 71: 5530 + 79 = 5609
Step 72: 5609 + 79 = 5688
Step 73: 5688 + 79 = 5767
Step 74: 5767 + 79 = 5846
Step 75: 5846 + 79 = 5925
Step 76: 5925 + 79 = 6004
Step 77: 6004 + 79 = 6083
Step 78: 6083 + 79 = 6162
Step 79: 6162 + 79 = 6241
Step 80: 6241 + 79 = 6320
Step 81: 6320 + 79 = 6399
Step 82: 6399 + 79 = 6478
Step 83: 6478 + 79 = 6557
Step 84: 6557 + 79 = 6636
Step 85: 6636 + 79 = 6715
Step 86: 6715 + 79 = 6794
Step 87: 6794 + 79 = 6873
Step 88: 6873 + 79 = 6952
Step 89: 6952 + 79 = 7031
Step 90: 7031 + 79 = 7110
Step 91: 7110 + 79 = 7189
Step 92: 7189 + 79 = 7268
Step 93: 7268 + 79 = 7347
Step 94: 7347 + 79 = 7426
Step 95: 7426 + 79 = 7505
Step 96: 7505 + 79 = 7584
Step 97: 7584 + 79 = 7663
Step 98: 7663 + 79 = 7742
Step 99: 7742 + 79 = 7821
Step 100: 7821 + 79 = 7900
Step 101: 7900 + 79 = 7979
Step 102: 7979 + 79 = 8058
Step 103: 8058 + 79 = 8137
Step 104: 8137 + 79 = 8216
Step 105: 8216 + 79 = 8295
Step 106: 8295 + 79 = 8374
Step 107: 8374 + 79 = 8453
Step 108: 8453 + 79 = 8532
Step 109: 8532 + 79 = 8611
Step 110: 8611 + 79 = 8690
Step 111: 8690 + 79 = 8769
Step 112: 8769 + 79 = 8848
Step 113: 8848 + 79 = 8927
Step 114: 8927 + 79 = 9006
Step 115: 9006 + 79 = 9085
Step 116: 9085 + 79 = 9164
Step 117: 9164 + 79 = 9243
Step 118: 9243 + 79 = 9322
Step 119: 9322 + 79 = 9401
Step 120: 9401 + 79 = 9480
Step 121: 9480 + 79 = 9559
Step 122: 9559 + 79 = 9638
Step 123: 9638 + 79 = 9717
Step 124: 9717 + 79 = 9796
Step 125: 9796 + 79 = 9875
Step 126: 9875 + 79 = 9954
Step 127: 9954 + 79 = 10033
Step 128: 10033 + 79 = 10112
Step 129: 10112 + 79 = 10191
Step 130: 10191 + 79 = 10270
Step 131: 10270 + 79 = 10349
Step 132: 10349 + 79 = 10428
Step 133: 10428 + 79 = 10507
Step 134: 10507 + 79 = 10586
Step 135: 10586 + 79 = 10665
Step 136: 10665 + 79 = 10744
Step 137: 10744 + 79 = 10823
Step 138: 10823 + 79 = 10902
Step 139: 10902 + 79 = 10981
Step 140: 10981 + 79 = 11060
Step 141: 11060 + 79 = 11139
Step 142: 11139 + 79 = 11218
Step 143: 11218 + 79 = 11297
Step 144: 11297 + 79 = 11376
Step 145: 11376 + 79 = 11455
Step 146: 11455 + 79 = 11534
Step 147: 11534 + 79 = 11613
Step 148: 11613 + 79 = 11692
Step 149: 11692 + 79 = 11771
Step 150: 11771 + 79 = 11850
Step 151: 11850 + 79 = 11929
Step 152: 11929 + 79 = 12008
Step 153: 12008 + 79 = 12087
Step 154: 12087 + 79 = 12166
Step 155: 12166 + 79 = 12245
Step 156: 12245 + 79 = 12324
Step 157: 12324 + 79 = 12403
Step 158: 12403 + 79 = 12482
Step 159: 12482 + 79 = 12561
Step 160: 12561 + 79 = 12640
Step 161: 12640 + 79 = 12719
Step 162: 12719 + 79 = 12798
Step 163: 12798 + 79 = 12877
Step 164: 12877 + 79 = 12956
Step 165: 12956 + 79 = 13035
Step 166: 13035 + 79 = 13114
Step 167: 13114 + 79 = 13193
Step 168: 13193 + 79 = 13272
Step 169: 13272 + 79 = 13351
Step 170: 13351 + 79 = 13430
Step 171: 13430 + 79 = 13509
Step 172: 13509 + 79 = 13588
Step 173: 13588 + 79 = 13667
Step 174: 13667 + 79 = 13746
Step 175: 13746 + 79 = 13825
Step 176: 13825 + 79 = 13904
Step 177: 13904 + 79 = 13983
Step 178: 13983 + 79 = 14062
Step 179: 14062 + 79 = 14141
Step 180: 14141 + 79 = 14220
Step 181: 14220 + 79 = 14299
Step 182: 14299 + 79 = 14378
Step 183: 14378 + 79 = 14457
Step 184: 14457 + 79 = 14536
Step 185: 14536 + 79 = 14615
Step 186: 14615 + 79 = 14694
Step 187: 14694 + 79 = 14773
Step 188: 14773 + 79 = 14852
Step 189: 14852 + 79 = 14931
Step 190: 14931 + 79 = 15010
Step 191: 15010 + 79 = 15089
Step 192: 15089 + 79 = 15168
Step 193: 15168 + 79 = 15247
Step 194: 15247 + 79 = 15326
Step 195: 15326 + 79 = 15405
Step 196: 15405 + 79 = 15484
Step 197: 15484 + 79 = 15563
Step 198: 15563 + 79 = 15642
Step 199: 15642 + 79 = 15721
Step 200: 15721 + 79 = 15800
Step 201: 15800 + 79 = 15879
Step 202: 15879 + 79 = 15958
Step 203: 15958 + 79 = 16037
Step 204: 16037 + 79 = 16116
Step 205: 16116 + 79 = 16195
Step 206: 16195 + 79 = 16274
Step 207: 16274 + 79 = 16353
Step 208: 16353 + 79 = 16432
Step 209: 16432 + 79 = 16511
Step 210: 16511 + 79 = 16590
Step 211: 16590 + 79 = 16669
Step 212: 16669 + 79 = 16748
Step 213: 16748 + 79 = 16827
Step 214: 16827 + 79 = 16906
Step 215: 16906 + 79 = 16985
Step 216: 16985 + 79 = 17064
Step 217: 17064 + 79 = 17143
Step 218: 17143 + 79 = 17222
Step 219: 17222 + 79 = 17301
Step 220: 17301 + 79 = 17380
Step 221: 17380 + 79 = 17459
Step 222: 17459 + 79 = 17538
Step 223: 17538 + 79 = 17617
Step 224: 17617 + 79 = 17696
Step 225: 17696 + 79 = 17775
Step 226: 17775 + 79 = 17854
Step 227: 17854 + 79 = 17933
Step 228: 17933 + 79 = 18012
Step 229: 18012 + 79 = 18091
Step 230: 18091 + 79 = 18170
Step 231: 18170 + 79 = 18249
Step 232: 18249 + 79 = 18328
Step 233: 18328 + 79 = 18407
Step 234: 18407 + 79 = 18486
Step 235: 18486 + 79 = 18565
Step 236: 18565 + 79 = 18644
Step 237: 18644 + 79 = 18723
Step 238: 18723 + 79 = 18802
Step 239: 18802 + 79 = 18881
Step 240: 18881 + 79 = 18960
Step 241: 18960 + 79 = 19039
Step 242: 19039 + 79 = 19118
Step 243: 19118 + 79 = 19197
Step 244: 19197 + 79 = 19276
Step 245: 19276 + 79 = 19355
Step 246: 19355 + 79 = 19434
Step 247: 19434 + 79 = 19513
Step 248: 19513 + 79 = 19592
Step 249: 19592 + 79 = 19671
Step 250: 19671 + 79 = 19750
Step 251: 19750 + 79 = 19829
Step 252: 19829 + 79 = 19908
Step 253: 19908 + 79 = 19987
Step 254: 19987 + 79 = 20066
Step 255: 20066 + 79 = 20145
Step 256: 20145 + 79 = 20224
Step 257: 20224 + 79 = 20303
Step 258: 20303 + 79 = 20382
Step 259: 20382 + 79 = 20461
Step 260: 20461 + 79 = 20540
Step 261: 20540 + 79 = 20619
Step 262: 20619 + 79 = 20698
Step 263: 20698 + 79 = 20777
Step 264: 20777 + 79 = 20856
Step 265: 20856 + 79 = 20935
Step 266: 20935 + 79 = 21014
Step 267: 21014 + 79 = 21093
Step 268: 21093 + 79 = 21172
Step 269: 21172 + 79 = 21251
Step 270: 21251 + 79 = 21330
Step 271: 21330 + 79 = 21409
Step 272: 21409 + 79 = 21488
Step 273: 21488 + 79 = 21567
Step 274: 21567 + 79 = 21646
Step 275: 21646 + 79 = 21725
Step 276: 21725 + 79 = 21804
Step 277: 21804 + 79 = 21883
Step 278: 21883 + 79 = 21962
Step 279: 21962 + 79 = 22041
Step 280: 22041 + 79 = 22120
Step 281: 22120 + 79 = 22199
Step 282: 22199 + 79 = 22278
Step 283: 22278 + 79 = 22357
Step 284: 22357 + 79 = 22436
Step 285: 22436 + 79 = 22515
Step 286: 22515 + 79 = 22594
Step 287: 22594 + 79 = 22673
Step 288: 22673 + 79 = 22752
Step 289: 22752 + 79 = 22831
Step 290: 22831 + 79 = 22910
Step 291: 22910 + 79 = 22989
Step 292: 22989 + 79 = 23068
Step 293: 23068 + 79 = 23147
Step 294: 23147 + 79 = 23226
Step 295: 23226 + 79 = 23305
Step 296: 23305 + 79 = 23384
Step 297: 23384 + 79 = 23463
Step 298: 23463 + 79 = 23542
Step 299: 23542 + 79 = 23621
Step 300: 23621 + 79 = 23700
Step 301: 23700 + 79 = 23779
Step 302: 23779 + 79 = 23858
Step 303: 23858 + 79 = 23937
Step 304: 23937 + 79 = 24016
Step 305: 24016 + 79 = 24095
Step 306: 24095 + 79 = 24174
Step 307: 24174 + 79 = 24253
Step 308: 24253 + 79 = 24332
Step 309: 24332 + 79 = 24411
Step 310: 24411 + 79 = 24490
Step 311: 24490 + 79 = 24569
Step 312: 24569 + 79 = 24648
Step 313: 24648 + 79 = 24727
Step 314: 24727 + 79 = 24806
Step 315: 24806 + 79 = 24885
Step 316: 24885 + 79 = 24964
Step 317: 24964 + 79 = 25043
Step 318: 25043 + 79 = 25122
Step 319: 25122 + 79 = 25201
Step 320: 25201 + 79 = 25280
Step 321: 25280 + 79 = 25359
Step 322: 25359 + 79 = 25438
Step 323: 25438 + 79 = 25517
Step 324: 25517 + 79 = 25596
Step 325: 25596 + 79 = 25675
Step 326: 25675 + 79 = 25754
Step 327: 25754 + 79 = 25833
Step 328: 25833 + 79 = 25912
Step 329: 25912 + 79 = 25991
Step 330: 25991 + 79 = 26070
Step 331: 26070 + 79 = 26149
Step 332: 26149 + 79 = 26228
Step 333: 26228 + 79 = 26307
Step 334: 26307 + 79 = 26386
Step 335: 26386 + 79 = 26465
Step 336: 26465 + 79 = 26544
Step 337: 26544 + 79 = 26623
Step 338: 26623 + 79 = 26702
Step 339: 26702 + 79 = 26781

So, 79*339 = 26781