Let's calculate 3225 x 6816
3225 × 6816 = 6816 × (3225)
+ 6816 × 5 resulting in 34080
+ 6816 × 20 producing 136320
+ 6816 × 200 that results in 1363200
+ 6816 × 3000 that results in 20448000

= 21981600
