Alright, let's work through 5780 times 9863 step by step
5780 × 9863 = 9863 × (5780)
+ 9863 × 0 which equals 0
+ 9863 × 80 producing 789040
+ 9863 × 700 yielding 6904100
+ 9863 × 5000 that is equal 49315000

= 57008140
