No problem, we've got 4892 and 4480 to multiply
4892 × 4480 = 4480 × (4892)
+ 4480 × 2 resulting in 8960
+ 4480 × 90 that is equal 403200
+ 4480 × 800 that is equal 3584000
+ 4480 × 4000 which equals 17920000

= 21916160
