We're going to solve 8580 multiplied by 1290
8580 × 1290 = 1290 × (8580)
+ 1290 × 0 that is equal 0
+ 1290 × 80 producing 103200
+ 1290 × 500 which equals 645000
+ 1290 × 8000 giving us 10320000

= 11068200
