No problem, we've got 4285 and 3547 to multiply
4285 × 3547 = 3547 × (4285)
+ 3547 × 5 which equals 17735
+ 3547 × 80 which equals 283760
+ 3547 × 200 which equals 709400
+ 3547 × 4000 yielding 14188000

= 15198895
