Alright, let's work through 4512 times 3906 step by step
4512 × 3906 = 3906 × (4512)
+ 3906 × 2 producing 7812
+ 3906 × 10 yielding 39060
+ 3906 × 500 what gives us 1953000
+ 3906 × 4000 producing 15624000

= 17623872
