Let's calculate 7398 x 8638
7398 × 8638 = 8638 × (7398)
+ 8638 × 8 producing 69104
+ 8638 × 90 that results in 777420
+ 8638 × 300 resulting in 2591400
+ 8638 × 7000 what gives us 60466000

= 63903924
