Alright, let's work through 7780 times 4485 step by step
7780 × 4485 = 4485 × (7780)
+ 4485 × 0 that results in 0
+ 4485 × 80 giving us 358800
+ 4485 × 700 resulting in 3139500
+ 4485 × 7000 that equals 31395000

= 34893300
