No problem, we've got 3531 and 6160 to multiply
3531 × 6160 = 6160 × (3531)
+ 6160 × 1 what gives us 6160
+ 6160 × 30 giving us 184800
+ 6160 × 500 yielding 3080000
+ 6160 × 3000 producing 18480000

= 21750960
