Alright, let's work through 3842 times 623 step by step
3842 × 623 = 623 × (3842)
+ 623 × 2 which equals 1246
+ 623 × 40 what gives us 24920
+ 623 × 800 which equals 498400
+ 623 × 3000 producing 1869000

= 2393566
