Let's calculate 8691 x 6478
8691 × 6478 = 6478 × (8691)
+ 6478 × 1 that is equal 6478
+ 6478 × 90 which equals 583020
+ 6478 × 600 resulting in 3886800
+ 6478 × 8000 that results in 51824000

= 56300298
