Alright, let's work through 4742 times 4251 step by step
4742 × 4251 = 4251 × (4742)
+ 4251 × 2 producing 8502
+ 4251 × 40 which equals 170040
+ 4251 × 700 resulting in 2975700
+ 4251 × 4000 that equals 17004000

= 20158242
