Alright, let's work through 9880 times 631 step by step
9880 × 631 = 631 × (9880)
+ 631 × 0 that results in 0
+ 631 × 80 resulting in 50480
+ 631 × 800 giving us 504800
+ 631 × 9000 yielding 5679000

= 6234280
