Let's calculate 3998 x 6158
3998 × 6158 = 6158 × (3998)
+ 6158 × 8 that equals 49264
+ 6158 × 90 that results in 554220
+ 6158 × 900 which equals 5542200
+ 6158 × 3000 resulting in 18474000

= 24619684
