Sure thing! We've got 515 and we're gonna multiply it by 135. That's the same as adding 515 to itself 135 times.
Step 1: 0 + 515 = 515
Step 2: 515 + 515 = 1030
Step 3: 1030 + 515 = 1545
Step 4: 1545 + 515 = 2060
Step 5: 2060 + 515 = 2575
Step 6: 2575 + 515 = 3090
Step 7: 3090 + 515 = 3605
Step 8: 3605 + 515 = 4120
Step 9: 4120 + 515 = 4635
Step 10: 4635 + 515 = 5150
Step 11: 5150 + 515 = 5665
Step 12: 5665 + 515 = 6180
Step 13: 6180 + 515 = 6695
Step 14: 6695 + 515 = 7210
Step 15: 7210 + 515 = 7725
Step 16: 7725 + 515 = 8240
Step 17: 8240 + 515 = 8755
Step 18: 8755 + 515 = 9270
Step 19: 9270 + 515 = 9785
Step 20: 9785 + 515 = 10300
Step 21: 10300 + 515 = 10815
Step 22: 10815 + 515 = 11330
Step 23: 11330 + 515 = 11845
Step 24: 11845 + 515 = 12360
Step 25: 12360 + 515 = 12875
Step 26: 12875 + 515 = 13390
Step 27: 13390 + 515 = 13905
Step 28: 13905 + 515 = 14420
Step 29: 14420 + 515 = 14935
Step 30: 14935 + 515 = 15450
Step 31: 15450 + 515 = 15965
Step 32: 15965 + 515 = 16480
Step 33: 16480 + 515 = 16995
Step 34: 16995 + 515 = 17510
Step 35: 17510 + 515 = 18025
Step 36: 18025 + 515 = 18540
Step 37: 18540 + 515 = 19055
Step 38: 19055 + 515 = 19570
Step 39: 19570 + 515 = 20085
Step 40: 20085 + 515 = 20600
Step 41: 20600 + 515 = 21115
Step 42: 21115 + 515 = 21630
Step 43: 21630 + 515 = 22145
Step 44: 22145 + 515 = 22660
Step 45: 22660 + 515 = 23175
Step 46: 23175 + 515 = 23690
Step 47: 23690 + 515 = 24205
Step 48: 24205 + 515 = 24720
Step 49: 24720 + 515 = 25235
Step 50: 25235 + 515 = 25750
Step 51: 25750 + 515 = 26265
Step 52: 26265 + 515 = 26780
Step 53: 26780 + 515 = 27295
Step 54: 27295 + 515 = 27810
Step 55: 27810 + 515 = 28325
Step 56: 28325 + 515 = 28840
Step 57: 28840 + 515 = 29355
Step 58: 29355 + 515 = 29870
Step 59: 29870 + 515 = 30385
Step 60: 30385 + 515 = 30900
Step 61: 30900 + 515 = 31415
Step 62: 31415 + 515 = 31930
Step 63: 31930 + 515 = 32445
Step 64: 32445 + 515 = 32960
Step 65: 32960 + 515 = 33475
Step 66: 33475 + 515 = 33990
Step 67: 33990 + 515 = 34505
Step 68: 34505 + 515 = 35020
Step 69: 35020 + 515 = 35535
Step 70: 35535 + 515 = 36050
Step 71: 36050 + 515 = 36565
Step 72: 36565 + 515 = 37080
Step 73: 37080 + 515 = 37595
Step 74: 37595 + 515 = 38110
Step 75: 38110 + 515 = 38625
Step 76: 38625 + 515 = 39140
Step 77: 39140 + 515 = 39655
Step 78: 39655 + 515 = 40170
Step 79: 40170 + 515 = 40685
Step 80: 40685 + 515 = 41200
Step 81: 41200 + 515 = 41715
Step 82: 41715 + 515 = 42230
Step 83: 42230 + 515 = 42745
Step 84: 42745 + 515 = 43260
Step 85: 43260 + 515 = 43775
Step 86: 43775 + 515 = 44290
Step 87: 44290 + 515 = 44805
Step 88: 44805 + 515 = 45320
Step 89: 45320 + 515 = 45835
Step 90: 45835 + 515 = 46350
Step 91: 46350 + 515 = 46865
Step 92: 46865 + 515 = 47380
Step 93: 47380 + 515 = 47895
Step 94: 47895 + 515 = 48410
Step 95: 48410 + 515 = 48925
Step 96: 48925 + 515 = 49440
Step 97: 49440 + 515 = 49955
Step 98: 49955 + 515 = 50470
Step 99: 50470 + 515 = 50985
Step 100: 50985 + 515 = 51500
Step 101: 51500 + 515 = 52015
Step 102: 52015 + 515 = 52530
Step 103: 52530 + 515 = 53045
Step 104: 53045 + 515 = 53560
Step 105: 53560 + 515 = 54075
Step 106: 54075 + 515 = 54590
Step 107: 54590 + 515 = 55105
Step 108: 55105 + 515 = 55620
Step 109: 55620 + 515 = 56135
Step 110: 56135 + 515 = 56650
Step 111: 56650 + 515 = 57165
Step 112: 57165 + 515 = 57680
Step 113: 57680 + 515 = 58195
Step 114: 58195 + 515 = 58710
Step 115: 58710 + 515 = 59225
Step 116: 59225 + 515 = 59740
Step 117: 59740 + 515 = 60255
Step 118: 60255 + 515 = 60770
Step 119: 60770 + 515 = 61285
Step 120: 61285 + 515 = 61800
Step 121: 61800 + 515 = 62315
Step 122: 62315 + 515 = 62830
Step 123: 62830 + 515 = 63345
Step 124: 63345 + 515 = 63860
Step 125: 63860 + 515 = 64375
Step 126: 64375 + 515 = 64890
Step 127: 64890 + 515 = 65405
Step 128: 65405 + 515 = 65920
Step 129: 65920 + 515 = 66435
Step 130: 66435 + 515 = 66950
Step 131: 66950 + 515 = 67465
Step 132: 67465 + 515 = 67980
Step 133: 67980 + 515 = 68495
Step 134: 68495 + 515 = 69010
Step 135: 69010 + 515 = 69525

So, 515*135 = 69525