No problem, we've got 7856 and 3815 to multiply
7856 × 3815 = 3815 × (7856)
+ 3815 × 6 yielding 22890
+ 3815 × 50 resulting in 190750
+ 3815 × 800 what gives us 3052000
+ 3815 × 7000 yielding 26705000

= 29970640
