No problem, we've got 4454 and 3643 to multiply
4454 × 3643 = 3643 × (4454)
+ 3643 × 4 which equals 14572
+ 3643 × 50 which equals 182150
+ 3643 × 400 giving us 1457200
+ 3643 × 4000 that results in 14572000

= 16225922
