Alright, let's work through 4109 times 4038 step by step
4109 × 4038 = 4038 × (4109)
+ 4038 × 9 that equals 36342
+ 4038 × 00 that is equal 0
+ 4038 × 100 giving us 403800
+ 4038 × 4000 that is equal 16152000

= 16592142
