No problem, we've got 5643 and 3120 to multiply
5643 × 3120 = 3120 × (5643)
+ 3120 × 3 resulting in 9360
+ 3120 × 40 giving us 124800
+ 3120 × 600 giving us 1872000
+ 3120 × 5000 what gives us 15600000

= 17606160
