No problem, we've got 9984 and 4855 to multiply
9984 × 4855 = 4855 × (9984)
+ 4855 × 4 what gives us 19420
+ 4855 × 80 resulting in 388400
+ 4855 × 900 which equals 4369500
+ 4855 × 9000 resulting in 43695000

= 48472320
