No problem, we've got 3936 and 6647 to multiply
3936 × 6647 = 6647 × (3936)
+ 6647 × 6 that equals 39882
+ 6647 × 30 that is equal 199410
+ 6647 × 900 which equals 5982300
+ 6647 × 3000 yielding 19941000

= 26162592
