No problem, we've got 2091 and 6648 to multiply
2091 × 6648 = 6648 × (2091)
+ 6648 × 1 yielding 6648
+ 6648 × 90 which equals 598320
+ 6648 × 000 that is equal 0
+ 6648 × 2000 which equals 13296000

= 13900968
