Let's calculate 6688 x 6383
6688 × 6383 = 6383 × (6688)
+ 6383 × 8 what gives us 51064
+ 6383 × 80 producing 510640
+ 6383 × 600 what gives us 3829800
+ 6383 × 6000 that results in 38298000

= 42689504
