Alright, let's work through 2780 times 8459 step by step
2780 × 8459 = 8459 × (2780)
+ 8459 × 0 that is equal 0
+ 8459 × 80 producing 676720
+ 8459 × 700 that results in 5921300
+ 8459 × 2000 resulting in 16918000

= 23516020
