Let's calculate 8191 x 4961
8191 × 4961 = 4961 × (8191)
+ 4961 × 1 which equals 4961
+ 4961 × 90 that is equal 446490
+ 4961 × 100 which equals 496100
+ 4961 × 8000 that is equal 39688000

= 40635551
