No problem, we've got 3978 and 4786 to multiply
3978 × 4786 = 4786 × (3978)
+ 4786 × 8 that results in 38288
+ 4786 × 70 that is equal 335020
+ 4786 × 900 that results in 4307400
+ 4786 × 3000 that is equal 14358000

= 19038708
