OK, let's crack this. We're given 550 and our task is to multiply it by 135. Essentially, we'll be adding 550 to itself 135 times.
Step 1: 0 + 550 = 550
Step 2: 550 + 550 = 1100
Step 3: 1100 + 550 = 1650
Step 4: 1650 + 550 = 2200
Step 5: 2200 + 550 = 2750
Step 6: 2750 + 550 = 3300
Step 7: 3300 + 550 = 3850
Step 8: 3850 + 550 = 4400
Step 9: 4400 + 550 = 4950
Step 10: 4950 + 550 = 5500
Step 11: 5500 + 550 = 6050
Step 12: 6050 + 550 = 6600
Step 13: 6600 + 550 = 7150
Step 14: 7150 + 550 = 7700
Step 15: 7700 + 550 = 8250
Step 16: 8250 + 550 = 8800
Step 17: 8800 + 550 = 9350
Step 18: 9350 + 550 = 9900
Step 19: 9900 + 550 = 10450
Step 20: 10450 + 550 = 11000
Step 21: 11000 + 550 = 11550
Step 22: 11550 + 550 = 12100
Step 23: 12100 + 550 = 12650
Step 24: 12650 + 550 = 13200
Step 25: 13200 + 550 = 13750
Step 26: 13750 + 550 = 14300
Step 27: 14300 + 550 = 14850
Step 28: 14850 + 550 = 15400
Step 29: 15400 + 550 = 15950
Step 30: 15950 + 550 = 16500
Step 31: 16500 + 550 = 17050
Step 32: 17050 + 550 = 17600
Step 33: 17600 + 550 = 18150
Step 34: 18150 + 550 = 18700
Step 35: 18700 + 550 = 19250
Step 36: 19250 + 550 = 19800
Step 37: 19800 + 550 = 20350
Step 38: 20350 + 550 = 20900
Step 39: 20900 + 550 = 21450
Step 40: 21450 + 550 = 22000
Step 41: 22000 + 550 = 22550
Step 42: 22550 + 550 = 23100
Step 43: 23100 + 550 = 23650
Step 44: 23650 + 550 = 24200
Step 45: 24200 + 550 = 24750
Step 46: 24750 + 550 = 25300
Step 47: 25300 + 550 = 25850
Step 48: 25850 + 550 = 26400
Step 49: 26400 + 550 = 26950
Step 50: 26950 + 550 = 27500
Step 51: 27500 + 550 = 28050
Step 52: 28050 + 550 = 28600
Step 53: 28600 + 550 = 29150
Step 54: 29150 + 550 = 29700
Step 55: 29700 + 550 = 30250
Step 56: 30250 + 550 = 30800
Step 57: 30800 + 550 = 31350
Step 58: 31350 + 550 = 31900
Step 59: 31900 + 550 = 32450
Step 60: 32450 + 550 = 33000
Step 61: 33000 + 550 = 33550
Step 62: 33550 + 550 = 34100
Step 63: 34100 + 550 = 34650
Step 64: 34650 + 550 = 35200
Step 65: 35200 + 550 = 35750
Step 66: 35750 + 550 = 36300
Step 67: 36300 + 550 = 36850
Step 68: 36850 + 550 = 37400
Step 69: 37400 + 550 = 37950
Step 70: 37950 + 550 = 38500
Step 71: 38500 + 550 = 39050
Step 72: 39050 + 550 = 39600
Step 73: 39600 + 550 = 40150
Step 74: 40150 + 550 = 40700
Step 75: 40700 + 550 = 41250
Step 76: 41250 + 550 = 41800
Step 77: 41800 + 550 = 42350
Step 78: 42350 + 550 = 42900
Step 79: 42900 + 550 = 43450
Step 80: 43450 + 550 = 44000
Step 81: 44000 + 550 = 44550
Step 82: 44550 + 550 = 45100
Step 83: 45100 + 550 = 45650
Step 84: 45650 + 550 = 46200
Step 85: 46200 + 550 = 46750
Step 86: 46750 + 550 = 47300
Step 87: 47300 + 550 = 47850
Step 88: 47850 + 550 = 48400
Step 89: 48400 + 550 = 48950
Step 90: 48950 + 550 = 49500
Step 91: 49500 + 550 = 50050
Step 92: 50050 + 550 = 50600
Step 93: 50600 + 550 = 51150
Step 94: 51150 + 550 = 51700
Step 95: 51700 + 550 = 52250
Step 96: 52250 + 550 = 52800
Step 97: 52800 + 550 = 53350
Step 98: 53350 + 550 = 53900
Step 99: 53900 + 550 = 54450
Step 100: 54450 + 550 = 55000
Step 101: 55000 + 550 = 55550
Step 102: 55550 + 550 = 56100
Step 103: 56100 + 550 = 56650
Step 104: 56650 + 550 = 57200
Step 105: 57200 + 550 = 57750
Step 106: 57750 + 550 = 58300
Step 107: 58300 + 550 = 58850
Step 108: 58850 + 550 = 59400
Step 109: 59400 + 550 = 59950
Step 110: 59950 + 550 = 60500
Step 111: 60500 + 550 = 61050
Step 112: 61050 + 550 = 61600
Step 113: 61600 + 550 = 62150
Step 114: 62150 + 550 = 62700
Step 115: 62700 + 550 = 63250
Step 116: 63250 + 550 = 63800
Step 117: 63800 + 550 = 64350
Step 118: 64350 + 550 = 64900
Step 119: 64900 + 550 = 65450
Step 120: 65450 + 550 = 66000
Step 121: 66000 + 550 = 66550
Step 122: 66550 + 550 = 67100
Step 123: 67100 + 550 = 67650
Step 124: 67650 + 550 = 68200
Step 125: 68200 + 550 = 68750
Step 126: 68750 + 550 = 69300
Step 127: 69300 + 550 = 69850
Step 128: 69850 + 550 = 70400
Step 129: 70400 + 550 = 70950
Step 130: 70950 + 550 = 71500
Step 131: 71500 + 550 = 72050
Step 132: 72050 + 550 = 72600
Step 133: 72600 + 550 = 73150
Step 134: 73150 + 550 = 73700
Step 135: 73700 + 550 = 74250

So, 550*135 = 74250