Without delay, let's solve this. We've got 443 and we will be multiplying it by 80, that is, adding 443 to itself 80 times.
Step 1: 0 + 443 = 443
Step 2: 443 + 443 = 886
Step 3: 886 + 443 = 1329
Step 4: 1329 + 443 = 1772
Step 5: 1772 + 443 = 2215
Step 6: 2215 + 443 = 2658
Step 7: 2658 + 443 = 3101
Step 8: 3101 + 443 = 3544
Step 9: 3544 + 443 = 3987
Step 10: 3987 + 443 = 4430
Step 11: 4430 + 443 = 4873
Step 12: 4873 + 443 = 5316
Step 13: 5316 + 443 = 5759
Step 14: 5759 + 443 = 6202
Step 15: 6202 + 443 = 6645
Step 16: 6645 + 443 = 7088
Step 17: 7088 + 443 = 7531
Step 18: 7531 + 443 = 7974
Step 19: 7974 + 443 = 8417
Step 20: 8417 + 443 = 8860
Step 21: 8860 + 443 = 9303
Step 22: 9303 + 443 = 9746
Step 23: 9746 + 443 = 10189
Step 24: 10189 + 443 = 10632
Step 25: 10632 + 443 = 11075
Step 26: 11075 + 443 = 11518
Step 27: 11518 + 443 = 11961
Step 28: 11961 + 443 = 12404
Step 29: 12404 + 443 = 12847
Step 30: 12847 + 443 = 13290
Step 31: 13290 + 443 = 13733
Step 32: 13733 + 443 = 14176
Step 33: 14176 + 443 = 14619
Step 34: 14619 + 443 = 15062
Step 35: 15062 + 443 = 15505
Step 36: 15505 + 443 = 15948
Step 37: 15948 + 443 = 16391
Step 38: 16391 + 443 = 16834
Step 39: 16834 + 443 = 17277
Step 40: 17277 + 443 = 17720
Step 41: 17720 + 443 = 18163
Step 42: 18163 + 443 = 18606
Step 43: 18606 + 443 = 19049
Step 44: 19049 + 443 = 19492
Step 45: 19492 + 443 = 19935
Step 46: 19935 + 443 = 20378
Step 47: 20378 + 443 = 20821
Step 48: 20821 + 443 = 21264
Step 49: 21264 + 443 = 21707
Step 50: 21707 + 443 = 22150
Step 51: 22150 + 443 = 22593
Step 52: 22593 + 443 = 23036
Step 53: 23036 + 443 = 23479
Step 54: 23479 + 443 = 23922
Step 55: 23922 + 443 = 24365
Step 56: 24365 + 443 = 24808
Step 57: 24808 + 443 = 25251
Step 58: 25251 + 443 = 25694
Step 59: 25694 + 443 = 26137
Step 60: 26137 + 443 = 26580
Step 61: 26580 + 443 = 27023
Step 62: 27023 + 443 = 27466
Step 63: 27466 + 443 = 27909
Step 64: 27909 + 443 = 28352
Step 65: 28352 + 443 = 28795
Step 66: 28795 + 443 = 29238
Step 67: 29238 + 443 = 29681
Step 68: 29681 + 443 = 30124
Step 69: 30124 + 443 = 30567
Step 70: 30567 + 443 = 31010
Step 71: 31010 + 443 = 31453
Step 72: 31453 + 443 = 31896
Step 73: 31896 + 443 = 32339
Step 74: 32339 + 443 = 32782
Step 75: 32782 + 443 = 33225
Step 76: 33225 + 443 = 33668
Step 77: 33668 + 443 = 34111
Step 78: 34111 + 443 = 34554
Step 79: 34554 + 443 = 34997
Step 80: 34997 + 443 = 35440

So, 443*80 = 35440