Alright, let's work through 2780 times 7105 step by step
2780 × 7105 = 7105 × (2780)
+ 7105 × 0 that results in 0
+ 7105 × 80 which equals 568400
+ 7105 × 700 that equals 4973500
+ 7105 × 2000 resulting in 14210000

= 19751900
