Alright, let's solve this math problem step by step. First, we have the number 313. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 135. So, we're going to take the number 313 and add it to itself 135 times.
Step 1: 0 + 313 = 313
Step 2: 313 + 313 = 626
Step 3: 626 + 313 = 939
Step 4: 939 + 313 = 1252
Step 5: 1252 + 313 = 1565
Step 6: 1565 + 313 = 1878
Step 7: 1878 + 313 = 2191
Step 8: 2191 + 313 = 2504
Step 9: 2504 + 313 = 2817
Step 10: 2817 + 313 = 3130
Step 11: 3130 + 313 = 3443
Step 12: 3443 + 313 = 3756
Step 13: 3756 + 313 = 4069
Step 14: 4069 + 313 = 4382
Step 15: 4382 + 313 = 4695
Step 16: 4695 + 313 = 5008
Step 17: 5008 + 313 = 5321
Step 18: 5321 + 313 = 5634
Step 19: 5634 + 313 = 5947
Step 20: 5947 + 313 = 6260
Step 21: 6260 + 313 = 6573
Step 22: 6573 + 313 = 6886
Step 23: 6886 + 313 = 7199
Step 24: 7199 + 313 = 7512
Step 25: 7512 + 313 = 7825
Step 26: 7825 + 313 = 8138
Step 27: 8138 + 313 = 8451
Step 28: 8451 + 313 = 8764
Step 29: 8764 + 313 = 9077
Step 30: 9077 + 313 = 9390
Step 31: 9390 + 313 = 9703
Step 32: 9703 + 313 = 10016
Step 33: 10016 + 313 = 10329
Step 34: 10329 + 313 = 10642
Step 35: 10642 + 313 = 10955
Step 36: 10955 + 313 = 11268
Step 37: 11268 + 313 = 11581
Step 38: 11581 + 313 = 11894
Step 39: 11894 + 313 = 12207
Step 40: 12207 + 313 = 12520
Step 41: 12520 + 313 = 12833
Step 42: 12833 + 313 = 13146
Step 43: 13146 + 313 = 13459
Step 44: 13459 + 313 = 13772
Step 45: 13772 + 313 = 14085
Step 46: 14085 + 313 = 14398
Step 47: 14398 + 313 = 14711
Step 48: 14711 + 313 = 15024
Step 49: 15024 + 313 = 15337
Step 50: 15337 + 313 = 15650
Step 51: 15650 + 313 = 15963
Step 52: 15963 + 313 = 16276
Step 53: 16276 + 313 = 16589
Step 54: 16589 + 313 = 16902
Step 55: 16902 + 313 = 17215
Step 56: 17215 + 313 = 17528
Step 57: 17528 + 313 = 17841
Step 58: 17841 + 313 = 18154
Step 59: 18154 + 313 = 18467
Step 60: 18467 + 313 = 18780
Step 61: 18780 + 313 = 19093
Step 62: 19093 + 313 = 19406
Step 63: 19406 + 313 = 19719
Step 64: 19719 + 313 = 20032
Step 65: 20032 + 313 = 20345
Step 66: 20345 + 313 = 20658
Step 67: 20658 + 313 = 20971
Step 68: 20971 + 313 = 21284
Step 69: 21284 + 313 = 21597
Step 70: 21597 + 313 = 21910
Step 71: 21910 + 313 = 22223
Step 72: 22223 + 313 = 22536
Step 73: 22536 + 313 = 22849
Step 74: 22849 + 313 = 23162
Step 75: 23162 + 313 = 23475
Step 76: 23475 + 313 = 23788
Step 77: 23788 + 313 = 24101
Step 78: 24101 + 313 = 24414
Step 79: 24414 + 313 = 24727
Step 80: 24727 + 313 = 25040
Step 81: 25040 + 313 = 25353
Step 82: 25353 + 313 = 25666
Step 83: 25666 + 313 = 25979
Step 84: 25979 + 313 = 26292
Step 85: 26292 + 313 = 26605
Step 86: 26605 + 313 = 26918
Step 87: 26918 + 313 = 27231
Step 88: 27231 + 313 = 27544
Step 89: 27544 + 313 = 27857
Step 90: 27857 + 313 = 28170
Step 91: 28170 + 313 = 28483
Step 92: 28483 + 313 = 28796
Step 93: 28796 + 313 = 29109
Step 94: 29109 + 313 = 29422
Step 95: 29422 + 313 = 29735
Step 96: 29735 + 313 = 30048
Step 97: 30048 + 313 = 30361
Step 98: 30361 + 313 = 30674
Step 99: 30674 + 313 = 30987
Step 100: 30987 + 313 = 31300
Step 101: 31300 + 313 = 31613
Step 102: 31613 + 313 = 31926
Step 103: 31926 + 313 = 32239
Step 104: 32239 + 313 = 32552
Step 105: 32552 + 313 = 32865
Step 106: 32865 + 313 = 33178
Step 107: 33178 + 313 = 33491
Step 108: 33491 + 313 = 33804
Step 109: 33804 + 313 = 34117
Step 110: 34117 + 313 = 34430
Step 111: 34430 + 313 = 34743
Step 112: 34743 + 313 = 35056
Step 113: 35056 + 313 = 35369
Step 114: 35369 + 313 = 35682
Step 115: 35682 + 313 = 35995
Step 116: 35995 + 313 = 36308
Step 117: 36308 + 313 = 36621
Step 118: 36621 + 313 = 36934
Step 119: 36934 + 313 = 37247
Step 120: 37247 + 313 = 37560
Step 121: 37560 + 313 = 37873
Step 122: 37873 + 313 = 38186
Step 123: 38186 + 313 = 38499
Step 124: 38499 + 313 = 38812
Step 125: 38812 + 313 = 39125
Step 126: 39125 + 313 = 39438
Step 127: 39438 + 313 = 39751
Step 128: 39751 + 313 = 40064
Step 129: 40064 + 313 = 40377
Step 130: 40377 + 313 = 40690
Step 131: 40690 + 313 = 41003
Step 132: 41003 + 313 = 41316
Step 133: 41316 + 313 = 41629
Step 134: 41629 + 313 = 41942
Step 135: 41942 + 313 = 42255

So, 313*135 = 42255