Alright, let's work through 3807 times 9642 step by step
3807 × 9642 = 9642 × (3807)
+ 9642 × 7 that is equal 67494
+ 9642 × 00 yielding 0
+ 9642 × 800 resulting in 7713600
+ 9642 × 3000 yielding 28926000

= 36707094
