Let's calculate 8236 x 9863
8236 × 9863 = 9863 × (8236)
+ 9863 × 6 resulting in 59178
+ 9863 × 30 that results in 295890
+ 9863 × 200 resulting in 1972600
+ 9863 × 8000 producing 78904000

= 81231668
