Alright, let's solve this math problem step by step. First, we have the number 50. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 85. So, we're going to take the number 50 and add it to itself 85 times.
Step 1: 0 + 50 = 50
Step 2: 50 + 50 = 100
Step 3: 100 + 50 = 150
Step 4: 150 + 50 = 200
Step 5: 200 + 50 = 250
Step 6: 250 + 50 = 300
Step 7: 300 + 50 = 350
Step 8: 350 + 50 = 400
Step 9: 400 + 50 = 450
Step 10: 450 + 50 = 500
Step 11: 500 + 50 = 550
Step 12: 550 + 50 = 600
Step 13: 600 + 50 = 650
Step 14: 650 + 50 = 700
Step 15: 700 + 50 = 750
Step 16: 750 + 50 = 800
Step 17: 800 + 50 = 850
Step 18: 850 + 50 = 900
Step 19: 900 + 50 = 950
Step 20: 950 + 50 = 1000
Step 21: 1000 + 50 = 1050
Step 22: 1050 + 50 = 1100
Step 23: 1100 + 50 = 1150
Step 24: 1150 + 50 = 1200
Step 25: 1200 + 50 = 1250
Step 26: 1250 + 50 = 1300
Step 27: 1300 + 50 = 1350
Step 28: 1350 + 50 = 1400
Step 29: 1400 + 50 = 1450
Step 30: 1450 + 50 = 1500
Step 31: 1500 + 50 = 1550
Step 32: 1550 + 50 = 1600
Step 33: 1600 + 50 = 1650
Step 34: 1650 + 50 = 1700
Step 35: 1700 + 50 = 1750
Step 36: 1750 + 50 = 1800
Step 37: 1800 + 50 = 1850
Step 38: 1850 + 50 = 1900
Step 39: 1900 + 50 = 1950
Step 40: 1950 + 50 = 2000
Step 41: 2000 + 50 = 2050
Step 42: 2050 + 50 = 2100
Step 43: 2100 + 50 = 2150
Step 44: 2150 + 50 = 2200
Step 45: 2200 + 50 = 2250
Step 46: 2250 + 50 = 2300
Step 47: 2300 + 50 = 2350
Step 48: 2350 + 50 = 2400
Step 49: 2400 + 50 = 2450
Step 50: 2450 + 50 = 2500
Step 51: 2500 + 50 = 2550
Step 52: 2550 + 50 = 2600
Step 53: 2600 + 50 = 2650
Step 54: 2650 + 50 = 2700
Step 55: 2700 + 50 = 2750
Step 56: 2750 + 50 = 2800
Step 57: 2800 + 50 = 2850
Step 58: 2850 + 50 = 2900
Step 59: 2900 + 50 = 2950
Step 60: 2950 + 50 = 3000
Step 61: 3000 + 50 = 3050
Step 62: 3050 + 50 = 3100
Step 63: 3100 + 50 = 3150
Step 64: 3150 + 50 = 3200
Step 65: 3200 + 50 = 3250
Step 66: 3250 + 50 = 3300
Step 67: 3300 + 50 = 3350
Step 68: 3350 + 50 = 3400
Step 69: 3400 + 50 = 3450
Step 70: 3450 + 50 = 3500
Step 71: 3500 + 50 = 3550
Step 72: 3550 + 50 = 3600
Step 73: 3600 + 50 = 3650
Step 74: 3650 + 50 = 3700
Step 75: 3700 + 50 = 3750
Step 76: 3750 + 50 = 3800
Step 77: 3800 + 50 = 3850
Step 78: 3850 + 50 = 3900
Step 79: 3900 + 50 = 3950
Step 80: 3950 + 50 = 4000
Step 81: 4000 + 50 = 4050
Step 82: 4050 + 50 = 4100
Step 83: 4100 + 50 = 4150
Step 84: 4150 + 50 = 4200
Step 85: 4200 + 50 = 4250

So, 50*85 = 4250