Alright, let's work through 4748 times 3996 step by step
4748 × 3996 = 3996 × (4748)
+ 3996 × 8 that results in 31968
+ 3996 × 40 yielding 159840
+ 3996 × 700 that results in 2797200
+ 3996 × 4000 yielding 15984000

= 18973008
