Alright, let's work through 5007 times 9912 step by step
5007 × 9912 = 9912 × (5007)
+ 9912 × 7 what gives us 69384
+ 9912 × 00 producing 0
+ 9912 × 000 which equals 0
+ 9912 × 5000 producing 49560000

= 49629384
