Let's calculate 8424 x 9925
8424 × 9925 = 9925 × (8424)
+ 9925 × 4 that is equal 39700
+ 9925 × 20 that results in 198500
+ 9925 × 400 resulting in 3970000
+ 9925 × 8000 producing 79400000

= 83608200
