No problem, we've got 3638 and 8600 to multiply
3638 × 8600 = 8600 × (3638)
+ 8600 × 8 resulting in 68800
+ 8600 × 30 what gives us 258000
+ 8600 × 600 that equals 5160000
+ 8600 × 3000 resulting in 25800000

= 31286800
