Alright, let's work through 8363 times 7807 step by step
8363 × 7807 = 7807 × (8363)
+ 7807 × 3 that is equal 23421
+ 7807 × 60 producing 468420
+ 7807 × 300 that is equal 2342100
+ 7807 × 8000 giving us 62456000

= 65289941
