Alright, let's work through 4025 times 3926 step by step
4025 × 3926 = 3926 × (4025)
+ 3926 × 5 producing 19630
+ 3926 × 20 that equals 78520
+ 3926 × 000 that equals 0
+ 3926 × 4000 resulting in 15704000

= 15802150
