No problem, we've got 4580 and 2640 to multiply
4580 × 2640 = 2640 × (4580)
+ 2640 × 0 giving us 0
+ 2640 × 80 giving us 211200
+ 2640 × 500 producing 1320000
+ 2640 × 4000 that is equal 10560000

= 12091200
