Alright, let's work through 6863 times 5072 step by step
6863 × 5072 = 5072 × (6863)
+ 5072 × 3 that is equal 15216
+ 5072 × 60 what gives us 304320
+ 5072 × 800 giving us 4057600
+ 5072 × 6000 resulting in 30432000

= 34809136
