Let's calculate 8364 x 6810
8364 × 6810 = 6810 × (8364)
+ 6810 × 4 that is equal 27240
+ 6810 × 60 that results in 408600
+ 6810 × 300 which equals 2043000
+ 6810 × 8000 yielding 54480000

= 56958840
