Alright, let's solve this math problem step by step. First, we have the number 150. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 89. So, we're going to take the number 150 and add it to itself 89 times.
Step 1: 0 + 150 = 150
Step 2: 150 + 150 = 300
Step 3: 300 + 150 = 450
Step 4: 450 + 150 = 600
Step 5: 600 + 150 = 750
Step 6: 750 + 150 = 900
Step 7: 900 + 150 = 1050
Step 8: 1050 + 150 = 1200
Step 9: 1200 + 150 = 1350
Step 10: 1350 + 150 = 1500
Step 11: 1500 + 150 = 1650
Step 12: 1650 + 150 = 1800
Step 13: 1800 + 150 = 1950
Step 14: 1950 + 150 = 2100
Step 15: 2100 + 150 = 2250
Step 16: 2250 + 150 = 2400
Step 17: 2400 + 150 = 2550
Step 18: 2550 + 150 = 2700
Step 19: 2700 + 150 = 2850
Step 20: 2850 + 150 = 3000
Step 21: 3000 + 150 = 3150
Step 22: 3150 + 150 = 3300
Step 23: 3300 + 150 = 3450
Step 24: 3450 + 150 = 3600
Step 25: 3600 + 150 = 3750
Step 26: 3750 + 150 = 3900
Step 27: 3900 + 150 = 4050
Step 28: 4050 + 150 = 4200
Step 29: 4200 + 150 = 4350
Step 30: 4350 + 150 = 4500
Step 31: 4500 + 150 = 4650
Step 32: 4650 + 150 = 4800
Step 33: 4800 + 150 = 4950
Step 34: 4950 + 150 = 5100
Step 35: 5100 + 150 = 5250
Step 36: 5250 + 150 = 5400
Step 37: 5400 + 150 = 5550
Step 38: 5550 + 150 = 5700
Step 39: 5700 + 150 = 5850
Step 40: 5850 + 150 = 6000
Step 41: 6000 + 150 = 6150
Step 42: 6150 + 150 = 6300
Step 43: 6300 + 150 = 6450
Step 44: 6450 + 150 = 6600
Step 45: 6600 + 150 = 6750
Step 46: 6750 + 150 = 6900
Step 47: 6900 + 150 = 7050
Step 48: 7050 + 150 = 7200
Step 49: 7200 + 150 = 7350
Step 50: 7350 + 150 = 7500
Step 51: 7500 + 150 = 7650
Step 52: 7650 + 150 = 7800
Step 53: 7800 + 150 = 7950
Step 54: 7950 + 150 = 8100
Step 55: 8100 + 150 = 8250
Step 56: 8250 + 150 = 8400
Step 57: 8400 + 150 = 8550
Step 58: 8550 + 150 = 8700
Step 59: 8700 + 150 = 8850
Step 60: 8850 + 150 = 9000
Step 61: 9000 + 150 = 9150
Step 62: 9150 + 150 = 9300
Step 63: 9300 + 150 = 9450
Step 64: 9450 + 150 = 9600
Step 65: 9600 + 150 = 9750
Step 66: 9750 + 150 = 9900
Step 67: 9900 + 150 = 10050
Step 68: 10050 + 150 = 10200
Step 69: 10200 + 150 = 10350
Step 70: 10350 + 150 = 10500
Step 71: 10500 + 150 = 10650
Step 72: 10650 + 150 = 10800
Step 73: 10800 + 150 = 10950
Step 74: 10950 + 150 = 11100
Step 75: 11100 + 150 = 11250
Step 76: 11250 + 150 = 11400
Step 77: 11400 + 150 = 11550
Step 78: 11550 + 150 = 11700
Step 79: 11700 + 150 = 11850
Step 80: 11850 + 150 = 12000
Step 81: 12000 + 150 = 12150
Step 82: 12150 + 150 = 12300
Step 83: 12300 + 150 = 12450
Step 84: 12450 + 150 = 12600
Step 85: 12600 + 150 = 12750
Step 86: 12750 + 150 = 12900
Step 87: 12900 + 150 = 13050
Step 88: 13050 + 150 = 13200
Step 89: 13200 + 150 = 13350

So, 150*89 = 13350