Let's calculate 8387 x 6561
8387 × 6561 = 6561 × (8387)
+ 6561 × 7 producing 45927
+ 6561 × 80 which equals 524880
+ 6561 × 300 that results in 1968300
+ 6561 × 8000 resulting in 52488000

= 55027107
