No problem, we've got 3844 and 5136 to multiply
3844 × 5136 = 5136 × (3844)
+ 5136 × 4 what gives us 20544
+ 5136 × 40 resulting in 205440
+ 5136 × 800 producing 4108800
+ 5136 × 3000 that equals 15408000

= 19742784
