Alright, let's work through 5007 times 3968 step by step
5007 × 3968 = 3968 × (5007)
+ 3968 × 7 yielding 27776
+ 3968 × 00 yielding 0
+ 3968 × 000 that is equal 0
+ 3968 × 5000 what gives us 19840000

= 19867776
