No problem, we've got 4688 and 5715 to multiply
4688 × 5715 = 5715 × (4688)
+ 5715 × 8 what gives us 45720
+ 5715 × 80 what gives us 457200
+ 5715 × 600 that is equal 3429000
+ 5715 × 4000 which equals 22860000

= 26791920
