Alright, let's work through 6789571 times 62842751 step by step
6789571 × 62842751 = 62842751 × (6789571)
+ 62842751 × 1 giving us 62842751
+ 62842751 × 70 that results in 4398992570
+ 62842751 × 500 producing 31421375500
+ 62842751 × 9000 that equals 565584759000
+ 62842751 × 80000 that results in 5027420080000
+ 62842751 × 700000 which equals 43989925700000
+ 62842751 × 6000000 yielding 377056506000000

= 426675319749821
