Alright, let's work through 4656 times 3964 step by step
4656 × 3964 = 3964 × (4656)
+ 3964 × 6 which equals 23784
+ 3964 × 50 yielding 198200
+ 3964 × 600 producing 2378400
+ 3964 × 4000 which equals 15856000

= 18456384
