Sure thing, let's get straight to it. We start with 19 and we're going to multiply it by 260, which means adding 19 to itself 260 times.
Step 1: 0 + 19 = 19
Step 2: 19 + 19 = 38
Step 3: 38 + 19 = 57
Step 4: 57 + 19 = 76
Step 5: 76 + 19 = 95
Step 6: 95 + 19 = 114
Step 7: 114 + 19 = 133
Step 8: 133 + 19 = 152
Step 9: 152 + 19 = 171
Step 10: 171 + 19 = 190
Step 11: 190 + 19 = 209
Step 12: 209 + 19 = 228
Step 13: 228 + 19 = 247
Step 14: 247 + 19 = 266
Step 15: 266 + 19 = 285
Step 16: 285 + 19 = 304
Step 17: 304 + 19 = 323
Step 18: 323 + 19 = 342
Step 19: 342 + 19 = 361
Step 20: 361 + 19 = 380
Step 21: 380 + 19 = 399
Step 22: 399 + 19 = 418
Step 23: 418 + 19 = 437
Step 24: 437 + 19 = 456
Step 25: 456 + 19 = 475
Step 26: 475 + 19 = 494
Step 27: 494 + 19 = 513
Step 28: 513 + 19 = 532
Step 29: 532 + 19 = 551
Step 30: 551 + 19 = 570
Step 31: 570 + 19 = 589
Step 32: 589 + 19 = 608
Step 33: 608 + 19 = 627
Step 34: 627 + 19 = 646
Step 35: 646 + 19 = 665
Step 36: 665 + 19 = 684
Step 37: 684 + 19 = 703
Step 38: 703 + 19 = 722
Step 39: 722 + 19 = 741
Step 40: 741 + 19 = 760
Step 41: 760 + 19 = 779
Step 42: 779 + 19 = 798
Step 43: 798 + 19 = 817
Step 44: 817 + 19 = 836
Step 45: 836 + 19 = 855
Step 46: 855 + 19 = 874
Step 47: 874 + 19 = 893
Step 48: 893 + 19 = 912
Step 49: 912 + 19 = 931
Step 50: 931 + 19 = 950
Step 51: 950 + 19 = 969
Step 52: 969 + 19 = 988
Step 53: 988 + 19 = 1007
Step 54: 1007 + 19 = 1026
Step 55: 1026 + 19 = 1045
Step 56: 1045 + 19 = 1064
Step 57: 1064 + 19 = 1083
Step 58: 1083 + 19 = 1102
Step 59: 1102 + 19 = 1121
Step 60: 1121 + 19 = 1140
Step 61: 1140 + 19 = 1159
Step 62: 1159 + 19 = 1178
Step 63: 1178 + 19 = 1197
Step 64: 1197 + 19 = 1216
Step 65: 1216 + 19 = 1235
Step 66: 1235 + 19 = 1254
Step 67: 1254 + 19 = 1273
Step 68: 1273 + 19 = 1292
Step 69: 1292 + 19 = 1311
Step 70: 1311 + 19 = 1330
Step 71: 1330 + 19 = 1349
Step 72: 1349 + 19 = 1368
Step 73: 1368 + 19 = 1387
Step 74: 1387 + 19 = 1406
Step 75: 1406 + 19 = 1425
Step 76: 1425 + 19 = 1444
Step 77: 1444 + 19 = 1463
Step 78: 1463 + 19 = 1482
Step 79: 1482 + 19 = 1501
Step 80: 1501 + 19 = 1520
Step 81: 1520 + 19 = 1539
Step 82: 1539 + 19 = 1558
Step 83: 1558 + 19 = 1577
Step 84: 1577 + 19 = 1596
Step 85: 1596 + 19 = 1615
Step 86: 1615 + 19 = 1634
Step 87: 1634 + 19 = 1653
Step 88: 1653 + 19 = 1672
Step 89: 1672 + 19 = 1691
Step 90: 1691 + 19 = 1710
Step 91: 1710 + 19 = 1729
Step 92: 1729 + 19 = 1748
Step 93: 1748 + 19 = 1767
Step 94: 1767 + 19 = 1786
Step 95: 1786 + 19 = 1805
Step 96: 1805 + 19 = 1824
Step 97: 1824 + 19 = 1843
Step 98: 1843 + 19 = 1862
Step 99: 1862 + 19 = 1881
Step 100: 1881 + 19 = 1900
Step 101: 1900 + 19 = 1919
Step 102: 1919 + 19 = 1938
Step 103: 1938 + 19 = 1957
Step 104: 1957 + 19 = 1976
Step 105: 1976 + 19 = 1995
Step 106: 1995 + 19 = 2014
Step 107: 2014 + 19 = 2033
Step 108: 2033 + 19 = 2052
Step 109: 2052 + 19 = 2071
Step 110: 2071 + 19 = 2090
Step 111: 2090 + 19 = 2109
Step 112: 2109 + 19 = 2128
Step 113: 2128 + 19 = 2147
Step 114: 2147 + 19 = 2166
Step 115: 2166 + 19 = 2185
Step 116: 2185 + 19 = 2204
Step 117: 2204 + 19 = 2223
Step 118: 2223 + 19 = 2242
Step 119: 2242 + 19 = 2261
Step 120: 2261 + 19 = 2280
Step 121: 2280 + 19 = 2299
Step 122: 2299 + 19 = 2318
Step 123: 2318 + 19 = 2337
Step 124: 2337 + 19 = 2356
Step 125: 2356 + 19 = 2375
Step 126: 2375 + 19 = 2394
Step 127: 2394 + 19 = 2413
Step 128: 2413 + 19 = 2432
Step 129: 2432 + 19 = 2451
Step 130: 2451 + 19 = 2470
Step 131: 2470 + 19 = 2489
Step 132: 2489 + 19 = 2508
Step 133: 2508 + 19 = 2527
Step 134: 2527 + 19 = 2546
Step 135: 2546 + 19 = 2565
Step 136: 2565 + 19 = 2584
Step 137: 2584 + 19 = 2603
Step 138: 2603 + 19 = 2622
Step 139: 2622 + 19 = 2641
Step 140: 2641 + 19 = 2660
Step 141: 2660 + 19 = 2679
Step 142: 2679 + 19 = 2698
Step 143: 2698 + 19 = 2717
Step 144: 2717 + 19 = 2736
Step 145: 2736 + 19 = 2755
Step 146: 2755 + 19 = 2774
Step 147: 2774 + 19 = 2793
Step 148: 2793 + 19 = 2812
Step 149: 2812 + 19 = 2831
Step 150: 2831 + 19 = 2850
Step 151: 2850 + 19 = 2869
Step 152: 2869 + 19 = 2888
Step 153: 2888 + 19 = 2907
Step 154: 2907 + 19 = 2926
Step 155: 2926 + 19 = 2945
Step 156: 2945 + 19 = 2964
Step 157: 2964 + 19 = 2983
Step 158: 2983 + 19 = 3002
Step 159: 3002 + 19 = 3021
Step 160: 3021 + 19 = 3040
Step 161: 3040 + 19 = 3059
Step 162: 3059 + 19 = 3078
Step 163: 3078 + 19 = 3097
Step 164: 3097 + 19 = 3116
Step 165: 3116 + 19 = 3135
Step 166: 3135 + 19 = 3154
Step 167: 3154 + 19 = 3173
Step 168: 3173 + 19 = 3192
Step 169: 3192 + 19 = 3211
Step 170: 3211 + 19 = 3230
Step 171: 3230 + 19 = 3249
Step 172: 3249 + 19 = 3268
Step 173: 3268 + 19 = 3287
Step 174: 3287 + 19 = 3306
Step 175: 3306 + 19 = 3325
Step 176: 3325 + 19 = 3344
Step 177: 3344 + 19 = 3363
Step 178: 3363 + 19 = 3382
Step 179: 3382 + 19 = 3401
Step 180: 3401 + 19 = 3420
Step 181: 3420 + 19 = 3439
Step 182: 3439 + 19 = 3458
Step 183: 3458 + 19 = 3477
Step 184: 3477 + 19 = 3496
Step 185: 3496 + 19 = 3515
Step 186: 3515 + 19 = 3534
Step 187: 3534 + 19 = 3553
Step 188: 3553 + 19 = 3572
Step 189: 3572 + 19 = 3591
Step 190: 3591 + 19 = 3610
Step 191: 3610 + 19 = 3629
Step 192: 3629 + 19 = 3648
Step 193: 3648 + 19 = 3667
Step 194: 3667 + 19 = 3686
Step 195: 3686 + 19 = 3705
Step 196: 3705 + 19 = 3724
Step 197: 3724 + 19 = 3743
Step 198: 3743 + 19 = 3762
Step 199: 3762 + 19 = 3781
Step 200: 3781 + 19 = 3800
Step 201: 3800 + 19 = 3819
Step 202: 3819 + 19 = 3838
Step 203: 3838 + 19 = 3857
Step 204: 3857 + 19 = 3876
Step 205: 3876 + 19 = 3895
Step 206: 3895 + 19 = 3914
Step 207: 3914 + 19 = 3933
Step 208: 3933 + 19 = 3952
Step 209: 3952 + 19 = 3971
Step 210: 3971 + 19 = 3990
Step 211: 3990 + 19 = 4009
Step 212: 4009 + 19 = 4028
Step 213: 4028 + 19 = 4047
Step 214: 4047 + 19 = 4066
Step 215: 4066 + 19 = 4085
Step 216: 4085 + 19 = 4104
Step 217: 4104 + 19 = 4123
Step 218: 4123 + 19 = 4142
Step 219: 4142 + 19 = 4161
Step 220: 4161 + 19 = 4180
Step 221: 4180 + 19 = 4199
Step 222: 4199 + 19 = 4218
Step 223: 4218 + 19 = 4237
Step 224: 4237 + 19 = 4256
Step 225: 4256 + 19 = 4275
Step 226: 4275 + 19 = 4294
Step 227: 4294 + 19 = 4313
Step 228: 4313 + 19 = 4332
Step 229: 4332 + 19 = 4351
Step 230: 4351 + 19 = 4370
Step 231: 4370 + 19 = 4389
Step 232: 4389 + 19 = 4408
Step 233: 4408 + 19 = 4427
Step 234: 4427 + 19 = 4446
Step 235: 4446 + 19 = 4465
Step 236: 4465 + 19 = 4484
Step 237: 4484 + 19 = 4503
Step 238: 4503 + 19 = 4522
Step 239: 4522 + 19 = 4541
Step 240: 4541 + 19 = 4560
Step 241: 4560 + 19 = 4579
Step 242: 4579 + 19 = 4598
Step 243: 4598 + 19 = 4617
Step 244: 4617 + 19 = 4636
Step 245: 4636 + 19 = 4655
Step 246: 4655 + 19 = 4674
Step 247: 4674 + 19 = 4693
Step 248: 4693 + 19 = 4712
Step 249: 4712 + 19 = 4731
Step 250: 4731 + 19 = 4750
Step 251: 4750 + 19 = 4769
Step 252: 4769 + 19 = 4788
Step 253: 4788 + 19 = 4807
Step 254: 4807 + 19 = 4826
Step 255: 4826 + 19 = 4845
Step 256: 4845 + 19 = 4864
Step 257: 4864 + 19 = 4883
Step 258: 4883 + 19 = 4902
Step 259: 4902 + 19 = 4921
Step 260: 4921 + 19 = 4940

So, 19*260 = 4940