No problem, we've got 9890 and 4891 to multiply
9890 × 4891 = 4891 × (9890)
+ 4891 × 0 that equals 0
+ 4891 × 90 resulting in 440190
+ 4891 × 800 giving us 3912800
+ 4891 × 9000 that equals 44019000

= 48371990
