Let's calculate 6428 x 8214
6428 × 8214 = 8214 × (6428)
+ 8214 × 8 what gives us 65712
+ 8214 × 20 which equals 164280
+ 8214 × 400 which equals 3285600
+ 8214 × 6000 resulting in 49284000

= 52799592
