Sure thing! We've got 499 and we're gonna multiply it by 80. That's the same as adding 499 to itself 80 times.
Step 1: 0 + 499 = 499
Step 2: 499 + 499 = 998
Step 3: 998 + 499 = 1497
Step 4: 1497 + 499 = 1996
Step 5: 1996 + 499 = 2495
Step 6: 2495 + 499 = 2994
Step 7: 2994 + 499 = 3493
Step 8: 3493 + 499 = 3992
Step 9: 3992 + 499 = 4491
Step 10: 4491 + 499 = 4990
Step 11: 4990 + 499 = 5489
Step 12: 5489 + 499 = 5988
Step 13: 5988 + 499 = 6487
Step 14: 6487 + 499 = 6986
Step 15: 6986 + 499 = 7485
Step 16: 7485 + 499 = 7984
Step 17: 7984 + 499 = 8483
Step 18: 8483 + 499 = 8982
Step 19: 8982 + 499 = 9481
Step 20: 9481 + 499 = 9980
Step 21: 9980 + 499 = 10479
Step 22: 10479 + 499 = 10978
Step 23: 10978 + 499 = 11477
Step 24: 11477 + 499 = 11976
Step 25: 11976 + 499 = 12475
Step 26: 12475 + 499 = 12974
Step 27: 12974 + 499 = 13473
Step 28: 13473 + 499 = 13972
Step 29: 13972 + 499 = 14471
Step 30: 14471 + 499 = 14970
Step 31: 14970 + 499 = 15469
Step 32: 15469 + 499 = 15968
Step 33: 15968 + 499 = 16467
Step 34: 16467 + 499 = 16966
Step 35: 16966 + 499 = 17465
Step 36: 17465 + 499 = 17964
Step 37: 17964 + 499 = 18463
Step 38: 18463 + 499 = 18962
Step 39: 18962 + 499 = 19461
Step 40: 19461 + 499 = 19960
Step 41: 19960 + 499 = 20459
Step 42: 20459 + 499 = 20958
Step 43: 20958 + 499 = 21457
Step 44: 21457 + 499 = 21956
Step 45: 21956 + 499 = 22455
Step 46: 22455 + 499 = 22954
Step 47: 22954 + 499 = 23453
Step 48: 23453 + 499 = 23952
Step 49: 23952 + 499 = 24451
Step 50: 24451 + 499 = 24950
Step 51: 24950 + 499 = 25449
Step 52: 25449 + 499 = 25948
Step 53: 25948 + 499 = 26447
Step 54: 26447 + 499 = 26946
Step 55: 26946 + 499 = 27445
Step 56: 27445 + 499 = 27944
Step 57: 27944 + 499 = 28443
Step 58: 28443 + 499 = 28942
Step 59: 28942 + 499 = 29441
Step 60: 29441 + 499 = 29940
Step 61: 29940 + 499 = 30439
Step 62: 30439 + 499 = 30938
Step 63: 30938 + 499 = 31437
Step 64: 31437 + 499 = 31936
Step 65: 31936 + 499 = 32435
Step 66: 32435 + 499 = 32934
Step 67: 32934 + 499 = 33433
Step 68: 33433 + 499 = 33932
Step 69: 33932 + 499 = 34431
Step 70: 34431 + 499 = 34930
Step 71: 34930 + 499 = 35429
Step 72: 35429 + 499 = 35928
Step 73: 35928 + 499 = 36427
Step 74: 36427 + 499 = 36926
Step 75: 36926 + 499 = 37425
Step 76: 37425 + 499 = 37924
Step 77: 37924 + 499 = 38423
Step 78: 38423 + 499 = 38922
Step 79: 38922 + 499 = 39421
Step 80: 39421 + 499 = 39920

So, 499*80 = 39920