No problem, we've got 3805 and 3920 to multiply
3805 × 3920 = 3920 × (3805)
+ 3920 × 5 resulting in 19600
+ 3920 × 00 resulting in 0
+ 3920 × 800 yielding 3136000
+ 3920 × 3000 that is equal 11760000

= 14915600
