Let's calculate 9978 x 4387
9978 × 4387 = 4387 × (9978)
+ 4387 × 8 producing 35096
+ 4387 × 70 resulting in 307090
+ 4387 × 900 which equals 3948300
+ 4387 × 9000 that results in 39483000

= 43773486
