Alright, let's solve this math problem step by step. First, we have the number 480. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 45. So, we're going to take the number 480 and add it to itself 45 times.
Step 1: 0 + 480 = 480
Step 2: 480 + 480 = 960
Step 3: 960 + 480 = 1440
Step 4: 1440 + 480 = 1920
Step 5: 1920 + 480 = 2400
Step 6: 2400 + 480 = 2880
Step 7: 2880 + 480 = 3360
Step 8: 3360 + 480 = 3840
Step 9: 3840 + 480 = 4320
Step 10: 4320 + 480 = 4800
Step 11: 4800 + 480 = 5280
Step 12: 5280 + 480 = 5760
Step 13: 5760 + 480 = 6240
Step 14: 6240 + 480 = 6720
Step 15: 6720 + 480 = 7200
Step 16: 7200 + 480 = 7680
Step 17: 7680 + 480 = 8160
Step 18: 8160 + 480 = 8640
Step 19: 8640 + 480 = 9120
Step 20: 9120 + 480 = 9600
Step 21: 9600 + 480 = 10080
Step 22: 10080 + 480 = 10560
Step 23: 10560 + 480 = 11040
Step 24: 11040 + 480 = 11520
Step 25: 11520 + 480 = 12000
Step 26: 12000 + 480 = 12480
Step 27: 12480 + 480 = 12960
Step 28: 12960 + 480 = 13440
Step 29: 13440 + 480 = 13920
Step 30: 13920 + 480 = 14400
Step 31: 14400 + 480 = 14880
Step 32: 14880 + 480 = 15360
Step 33: 15360 + 480 = 15840
Step 34: 15840 + 480 = 16320
Step 35: 16320 + 480 = 16800
Step 36: 16800 + 480 = 17280
Step 37: 17280 + 480 = 17760
Step 38: 17760 + 480 = 18240
Step 39: 18240 + 480 = 18720
Step 40: 18720 + 480 = 19200
Step 41: 19200 + 480 = 19680
Step 42: 19680 + 480 = 20160
Step 43: 20160 + 480 = 20640
Step 44: 20640 + 480 = 21120
Step 45: 21120 + 480 = 21600

So, 480*45 = 21600