Alright, let's work through 6621 times 8579 step by step
6621 × 8579 = 8579 × (6621)
+ 8579 × 1 resulting in 8579
+ 8579 × 20 that equals 171580
+ 8579 × 600 producing 5147400
+ 8579 × 6000 resulting in 51474000

= 56801559
