No problem, we've got 5405 and 4229 to multiply
5405 × 4229 = 4229 × (5405)
+ 4229 × 5 what gives us 21145
+ 4229 × 00 that results in 0
+ 4229 × 400 resulting in 1691600
+ 4229 × 5000 resulting in 21145000

= 22857745
