Alright, let's work through 7684 times 6648 step by step
7684 × 6648 = 6648 × (7684)
+ 6648 × 4 giving us 26592
+ 6648 × 80 which equals 531840
+ 6648 × 600 that is equal 3988800
+ 6648 × 7000 yielding 46536000

= 51083232
