Alright, let's work through 8502 times 2471 step by step
8502 × 2471 = 2471 × (8502)
+ 2471 × 2 that is equal 4942
+ 2471 × 00 giving us 0
+ 2471 × 500 that results in 1235500
+ 2471 × 8000 giving us 19768000

= 21008442
