Alright, let's work through 9821 times 8402 step by step
9821 × 8402 = 8402 × (9821)
+ 8402 × 1 producing 8402
+ 8402 × 20 that equals 168040
+ 8402 × 800 that results in 6721600
+ 8402 × 9000 yielding 75618000

= 82516042
