Let's calculate 6816 x 6309
6816 × 6309 = 6309 × (6816)
+ 6309 × 6 that is equal 37854
+ 6309 × 10 that equals 63090
+ 6309 × 800 which equals 5047200
+ 6309 × 6000 what gives us 37854000

= 43002144
