No problem, we've got 4690 and 4485 to multiply
4690 × 4485 = 4485 × (4690)
+ 4485 × 0 resulting in 0
+ 4485 × 90 resulting in 403650
+ 4485 × 600 resulting in 2691000
+ 4485 × 4000 that results in 17940000

= 21034650
