No problem, we've got 3997 and 6836 to multiply
3997 × 6836 = 6836 × (3997)
+ 6836 × 7 what gives us 47852
+ 6836 × 90 resulting in 615240
+ 6836 × 900 that is equal 6152400
+ 6836 × 3000 producing 20508000

= 27323492
