No problem, we've got 4120 and 6142 to multiply
4120 × 6142 = 6142 × (4120)
+ 6142 × 0 what gives us 0
+ 6142 × 20 what gives us 122840
+ 6142 × 100 resulting in 614200
+ 6142 × 4000 producing 24568000

= 25305040
