Alright, let's work through 8202 times 2439 step by step
8202 × 2439 = 2439 × (8202)
+ 2439 × 2 yielding 4878
+ 2439 × 00 that equals 0
+ 2439 × 200 that is equal 487800
+ 2439 × 8000 producing 19512000

= 20004678
