No problem, we've got 3951 and 4260 to multiply
3951 × 4260 = 4260 × (3951)
+ 4260 × 1 that results in 4260
+ 4260 × 50 that is equal 213000
+ 4260 × 900 that results in 3834000
+ 4260 × 3000 yielding 12780000

= 16831260
