Alright, let's work through 3923 times 4158 step by step
3923 × 4158 = 4158 × (3923)
+ 4158 × 3 that results in 12474
+ 4158 × 20 yielding 83160
+ 4158 × 900 that is equal 3742200
+ 4158 × 3000 giving us 12474000

= 16311834
