Alright, let's work through 7858 times 8080 step by step
7858 × 8080 = 8080 × (7858)
+ 8080 × 8 producing 64640
+ 8080 × 50 yielding 404000
+ 8080 × 800 resulting in 6464000
+ 8080 × 7000 which equals 56560000

= 63492640
