We're going to solve 3586 multiplied by 1580
3586 × 1580 = 1580 × (3586)
+ 1580 × 6 giving us 9480
+ 1580 × 80 producing 126400
+ 1580 × 500 yielding 790000
+ 1580 × 3000 resulting in 4740000

= 5665880
