Alright, let's solve this math problem step by step. First, we have the number 720. 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 720 and add it to itself 135 times.
Step 1: 0 + 720 = 720
Step 2: 720 + 720 = 1440
Step 3: 1440 + 720 = 2160
Step 4: 2160 + 720 = 2880
Step 5: 2880 + 720 = 3600
Step 6: 3600 + 720 = 4320
Step 7: 4320 + 720 = 5040
Step 8: 5040 + 720 = 5760
Step 9: 5760 + 720 = 6480
Step 10: 6480 + 720 = 7200
Step 11: 7200 + 720 = 7920
Step 12: 7920 + 720 = 8640
Step 13: 8640 + 720 = 9360
Step 14: 9360 + 720 = 10080
Step 15: 10080 + 720 = 10800
Step 16: 10800 + 720 = 11520
Step 17: 11520 + 720 = 12240
Step 18: 12240 + 720 = 12960
Step 19: 12960 + 720 = 13680
Step 20: 13680 + 720 = 14400
Step 21: 14400 + 720 = 15120
Step 22: 15120 + 720 = 15840
Step 23: 15840 + 720 = 16560
Step 24: 16560 + 720 = 17280
Step 25: 17280 + 720 = 18000
Step 26: 18000 + 720 = 18720
Step 27: 18720 + 720 = 19440
Step 28: 19440 + 720 = 20160
Step 29: 20160 + 720 = 20880
Step 30: 20880 + 720 = 21600
Step 31: 21600 + 720 = 22320
Step 32: 22320 + 720 = 23040
Step 33: 23040 + 720 = 23760
Step 34: 23760 + 720 = 24480
Step 35: 24480 + 720 = 25200
Step 36: 25200 + 720 = 25920
Step 37: 25920 + 720 = 26640
Step 38: 26640 + 720 = 27360
Step 39: 27360 + 720 = 28080
Step 40: 28080 + 720 = 28800
Step 41: 28800 + 720 = 29520
Step 42: 29520 + 720 = 30240
Step 43: 30240 + 720 = 30960
Step 44: 30960 + 720 = 31680
Step 45: 31680 + 720 = 32400
Step 46: 32400 + 720 = 33120
Step 47: 33120 + 720 = 33840
Step 48: 33840 + 720 = 34560
Step 49: 34560 + 720 = 35280
Step 50: 35280 + 720 = 36000
Step 51: 36000 + 720 = 36720
Step 52: 36720 + 720 = 37440
Step 53: 37440 + 720 = 38160
Step 54: 38160 + 720 = 38880
Step 55: 38880 + 720 = 39600
Step 56: 39600 + 720 = 40320
Step 57: 40320 + 720 = 41040
Step 58: 41040 + 720 = 41760
Step 59: 41760 + 720 = 42480
Step 60: 42480 + 720 = 43200
Step 61: 43200 + 720 = 43920
Step 62: 43920 + 720 = 44640
Step 63: 44640 + 720 = 45360
Step 64: 45360 + 720 = 46080
Step 65: 46080 + 720 = 46800
Step 66: 46800 + 720 = 47520
Step 67: 47520 + 720 = 48240
Step 68: 48240 + 720 = 48960
Step 69: 48960 + 720 = 49680
Step 70: 49680 + 720 = 50400
Step 71: 50400 + 720 = 51120
Step 72: 51120 + 720 = 51840
Step 73: 51840 + 720 = 52560
Step 74: 52560 + 720 = 53280
Step 75: 53280 + 720 = 54000
Step 76: 54000 + 720 = 54720
Step 77: 54720 + 720 = 55440
Step 78: 55440 + 720 = 56160
Step 79: 56160 + 720 = 56880
Step 80: 56880 + 720 = 57600
Step 81: 57600 + 720 = 58320
Step 82: 58320 + 720 = 59040
Step 83: 59040 + 720 = 59760
Step 84: 59760 + 720 = 60480
Step 85: 60480 + 720 = 61200
Step 86: 61200 + 720 = 61920
Step 87: 61920 + 720 = 62640
Step 88: 62640 + 720 = 63360
Step 89: 63360 + 720 = 64080
Step 90: 64080 + 720 = 64800
Step 91: 64800 + 720 = 65520
Step 92: 65520 + 720 = 66240
Step 93: 66240 + 720 = 66960
Step 94: 66960 + 720 = 67680
Step 95: 67680 + 720 = 68400
Step 96: 68400 + 720 = 69120
Step 97: 69120 + 720 = 69840
Step 98: 69840 + 720 = 70560
Step 99: 70560 + 720 = 71280
Step 100: 71280 + 720 = 72000
Step 101: 72000 + 720 = 72720
Step 102: 72720 + 720 = 73440
Step 103: 73440 + 720 = 74160
Step 104: 74160 + 720 = 74880
Step 105: 74880 + 720 = 75600
Step 106: 75600 + 720 = 76320
Step 107: 76320 + 720 = 77040
Step 108: 77040 + 720 = 77760
Step 109: 77760 + 720 = 78480
Step 110: 78480 + 720 = 79200
Step 111: 79200 + 720 = 79920
Step 112: 79920 + 720 = 80640
Step 113: 80640 + 720 = 81360
Step 114: 81360 + 720 = 82080
Step 115: 82080 + 720 = 82800
Step 116: 82800 + 720 = 83520
Step 117: 83520 + 720 = 84240
Step 118: 84240 + 720 = 84960
Step 119: 84960 + 720 = 85680
Step 120: 85680 + 720 = 86400
Step 121: 86400 + 720 = 87120
Step 122: 87120 + 720 = 87840
Step 123: 87840 + 720 = 88560
Step 124: 88560 + 720 = 89280
Step 125: 89280 + 720 = 90000
Step 126: 90000 + 720 = 90720
Step 127: 90720 + 720 = 91440
Step 128: 91440 + 720 = 92160
Step 129: 92160 + 720 = 92880
Step 130: 92880 + 720 = 93600
Step 131: 93600 + 720 = 94320
Step 132: 94320 + 720 = 95040
Step 133: 95040 + 720 = 95760
Step 134: 95760 + 720 = 96480
Step 135: 96480 + 720 = 97200

So, 720*135 = 97200