No problem, we've got 4686 and 2960 to multiply
4686 × 2960 = 2960 × (4686)
+ 2960 × 6 what gives us 17760
+ 2960 × 80 which equals 236800
+ 2960 × 600 resulting in 1776000
+ 2960 × 4000 that results in 11840000

= 13870560
