Alright, let's work through 3867 times 3182 step by step
3867 × 3182 = 3182 × (3867)
+ 3182 × 7 what gives us 22274
+ 3182 × 60 that equals 190920
+ 3182 × 800 producing 2545600
+ 3182 × 3000 which equals 9546000

= 12304794
