Alright, let's work through 4238 times 401 step by step
4238 × 401 = 401 × (4238)
+ 401 × 8 producing 3208
+ 401 × 30 what gives us 12030
+ 401 × 200 that is equal 80200
+ 401 × 4000 that results in 1604000

= 1699438
