We're going to solve 9585 multiplied by 1280
9585 × 1280 = 1280 × (9585)
+ 1280 × 5 what gives us 6400
+ 1280 × 80 what gives us 102400
+ 1280 × 500 that equals 640000
+ 1280 × 9000 which equals 11520000

= 12268800
