No problem, we've got 3982 and 7864 to multiply
3982 × 7864 = 7864 × (3982)
+ 7864 × 2 yielding 15728
+ 7864 × 80 that is equal 629120
+ 7864 × 900 that results in 7077600
+ 7864 × 3000 yielding 23592000

= 31314448
