No problem, we've got 3674 and 4389 to multiply
3674 × 4389 = 4389 × (3674)
+ 4389 × 4 resulting in 17556
+ 4389 × 70 that is equal 307230
+ 4389 × 600 which equals 2633400
+ 4389 × 3000 that results in 13167000

= 16125186
