No problem, we've got 2646 and 2164 to multiply
2646 × 2164 = 2164 × (2646)
+ 2164 × 6 what gives us 12984
+ 2164 × 40 resulting in 86560
+ 2164 × 600 that results in 1298400
+ 2164 × 2000 resulting in 4328000

= 5725944
