Alright, let's solve this math problem step by step. First, we have the number 625. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 65. So, we're going to take the number 625 and add it to itself 65 times.
Step 1: 0 + 625 = 625
Step 2: 625 + 625 = 1250
Step 3: 1250 + 625 = 1875
Step 4: 1875 + 625 = 2500
Step 5: 2500 + 625 = 3125
Step 6: 3125 + 625 = 3750
Step 7: 3750 + 625 = 4375
Step 8: 4375 + 625 = 5000
Step 9: 5000 + 625 = 5625
Step 10: 5625 + 625 = 6250
Step 11: 6250 + 625 = 6875
Step 12: 6875 + 625 = 7500
Step 13: 7500 + 625 = 8125
Step 14: 8125 + 625 = 8750
Step 15: 8750 + 625 = 9375
Step 16: 9375 + 625 = 10000
Step 17: 10000 + 625 = 10625
Step 18: 10625 + 625 = 11250
Step 19: 11250 + 625 = 11875
Step 20: 11875 + 625 = 12500
Step 21: 12500 + 625 = 13125
Step 22: 13125 + 625 = 13750
Step 23: 13750 + 625 = 14375
Step 24: 14375 + 625 = 15000
Step 25: 15000 + 625 = 15625
Step 26: 15625 + 625 = 16250
Step 27: 16250 + 625 = 16875
Step 28: 16875 + 625 = 17500
Step 29: 17500 + 625 = 18125
Step 30: 18125 + 625 = 18750
Step 31: 18750 + 625 = 19375
Step 32: 19375 + 625 = 20000
Step 33: 20000 + 625 = 20625
Step 34: 20625 + 625 = 21250
Step 35: 21250 + 625 = 21875
Step 36: 21875 + 625 = 22500
Step 37: 22500 + 625 = 23125
Step 38: 23125 + 625 = 23750
Step 39: 23750 + 625 = 24375
Step 40: 24375 + 625 = 25000
Step 41: 25000 + 625 = 25625
Step 42: 25625 + 625 = 26250
Step 43: 26250 + 625 = 26875
Step 44: 26875 + 625 = 27500
Step 45: 27500 + 625 = 28125
Step 46: 28125 + 625 = 28750
Step 47: 28750 + 625 = 29375
Step 48: 29375 + 625 = 30000
Step 49: 30000 + 625 = 30625
Step 50: 30625 + 625 = 31250
Step 51: 31250 + 625 = 31875
Step 52: 31875 + 625 = 32500
Step 53: 32500 + 625 = 33125
Step 54: 33125 + 625 = 33750
Step 55: 33750 + 625 = 34375
Step 56: 34375 + 625 = 35000
Step 57: 35000 + 625 = 35625
Step 58: 35625 + 625 = 36250
Step 59: 36250 + 625 = 36875
Step 60: 36875 + 625 = 37500
Step 61: 37500 + 625 = 38125
Step 62: 38125 + 625 = 38750
Step 63: 38750 + 625 = 39375
Step 64: 39375 + 625 = 40000
Step 65: 40000 + 625 = 40625

So, 625*65 = 40625