Alright, let's work through 5406 times 9912 step by step
5406 × 9912 = 9912 × (5406)
+ 9912 × 6 yielding 59472
+ 9912 × 00 resulting in 0
+ 9912 × 400 yielding 3964800
+ 9912 × 5000 producing 49560000

= 53584272
