Alright, let's solve this math problem step by step. First, we have the number 515. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 146. So, we're going to take the number 515 and add it to itself 146 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
Step 136: 69525 + 515 = 70040
Step 137: 70040 + 515 = 70555
Step 138: 70555 + 515 = 71070
Step 139: 71070 + 515 = 71585
Step 140: 71585 + 515 = 72100
Step 141: 72100 + 515 = 72615
Step 142: 72615 + 515 = 73130
Step 143: 73130 + 515 = 73645
Step 144: 73645 + 515 = 74160
Step 145: 74160 + 515 = 74675
Step 146: 74675 + 515 = 75190

So, 515*146 = 75190