Alright, let's work through 3580 times 5927 step by step
3580 × 5927 = 5927 × (3580)
+ 5927 × 0 resulting in 0
+ 5927 × 80 giving us 474160
+ 5927 × 500 producing 2963500
+ 5927 × 3000 which equals 17781000

= 21218660
