OK, let's work through this together. We're starting with 319 and we're going to multiply it by 111, which means we add 319 to itself 111 times.
Step 1: 0 + 319 = 319
Step 2: 319 + 319 = 638
Step 3: 638 + 319 = 957
Step 4: 957 + 319 = 1276
Step 5: 1276 + 319 = 1595
Step 6: 1595 + 319 = 1914
Step 7: 1914 + 319 = 2233
Step 8: 2233 + 319 = 2552
Step 9: 2552 + 319 = 2871
Step 10: 2871 + 319 = 3190
Step 11: 3190 + 319 = 3509
Step 12: 3509 + 319 = 3828
Step 13: 3828 + 319 = 4147
Step 14: 4147 + 319 = 4466
Step 15: 4466 + 319 = 4785
Step 16: 4785 + 319 = 5104
Step 17: 5104 + 319 = 5423
Step 18: 5423 + 319 = 5742
Step 19: 5742 + 319 = 6061
Step 20: 6061 + 319 = 6380
Step 21: 6380 + 319 = 6699
Step 22: 6699 + 319 = 7018
Step 23: 7018 + 319 = 7337
Step 24: 7337 + 319 = 7656
Step 25: 7656 + 319 = 7975
Step 26: 7975 + 319 = 8294
Step 27: 8294 + 319 = 8613
Step 28: 8613 + 319 = 8932
Step 29: 8932 + 319 = 9251
Step 30: 9251 + 319 = 9570
Step 31: 9570 + 319 = 9889
Step 32: 9889 + 319 = 10208
Step 33: 10208 + 319 = 10527
Step 34: 10527 + 319 = 10846
Step 35: 10846 + 319 = 11165
Step 36: 11165 + 319 = 11484
Step 37: 11484 + 319 = 11803
Step 38: 11803 + 319 = 12122
Step 39: 12122 + 319 = 12441
Step 40: 12441 + 319 = 12760
Step 41: 12760 + 319 = 13079
Step 42: 13079 + 319 = 13398
Step 43: 13398 + 319 = 13717
Step 44: 13717 + 319 = 14036
Step 45: 14036 + 319 = 14355
Step 46: 14355 + 319 = 14674
Step 47: 14674 + 319 = 14993
Step 48: 14993 + 319 = 15312
Step 49: 15312 + 319 = 15631
Step 50: 15631 + 319 = 15950
Step 51: 15950 + 319 = 16269
Step 52: 16269 + 319 = 16588
Step 53: 16588 + 319 = 16907
Step 54: 16907 + 319 = 17226
Step 55: 17226 + 319 = 17545
Step 56: 17545 + 319 = 17864
Step 57: 17864 + 319 = 18183
Step 58: 18183 + 319 = 18502
Step 59: 18502 + 319 = 18821
Step 60: 18821 + 319 = 19140
Step 61: 19140 + 319 = 19459
Step 62: 19459 + 319 = 19778
Step 63: 19778 + 319 = 20097
Step 64: 20097 + 319 = 20416
Step 65: 20416 + 319 = 20735
Step 66: 20735 + 319 = 21054
Step 67: 21054 + 319 = 21373
Step 68: 21373 + 319 = 21692
Step 69: 21692 + 319 = 22011
Step 70: 22011 + 319 = 22330
Step 71: 22330 + 319 = 22649
Step 72: 22649 + 319 = 22968
Step 73: 22968 + 319 = 23287
Step 74: 23287 + 319 = 23606
Step 75: 23606 + 319 = 23925
Step 76: 23925 + 319 = 24244
Step 77: 24244 + 319 = 24563
Step 78: 24563 + 319 = 24882
Step 79: 24882 + 319 = 25201
Step 80: 25201 + 319 = 25520
Step 81: 25520 + 319 = 25839
Step 82: 25839 + 319 = 26158
Step 83: 26158 + 319 = 26477
Step 84: 26477 + 319 = 26796
Step 85: 26796 + 319 = 27115
Step 86: 27115 + 319 = 27434
Step 87: 27434 + 319 = 27753
Step 88: 27753 + 319 = 28072
Step 89: 28072 + 319 = 28391
Step 90: 28391 + 319 = 28710
Step 91: 28710 + 319 = 29029
Step 92: 29029 + 319 = 29348
Step 93: 29348 + 319 = 29667
Step 94: 29667 + 319 = 29986
Step 95: 29986 + 319 = 30305
Step 96: 30305 + 319 = 30624
Step 97: 30624 + 319 = 30943
Step 98: 30943 + 319 = 31262
Step 99: 31262 + 319 = 31581
Step 100: 31581 + 319 = 31900
Step 101: 31900 + 319 = 32219
Step 102: 32219 + 319 = 32538
Step 103: 32538 + 319 = 32857
Step 104: 32857 + 319 = 33176
Step 105: 33176 + 319 = 33495
Step 106: 33495 + 319 = 33814
Step 107: 33814 + 319 = 34133
Step 108: 34133 + 319 = 34452
Step 109: 34452 + 319 = 34771
Step 110: 34771 + 319 = 35090
Step 111: 35090 + 319 = 35409

So, 319*111 = 35409