Alright, let's work through 7840 times 7945 step by step
7840 × 7945 = 7945 × (7840)
+ 7945 × 0 resulting in 0
+ 7945 × 40 yielding 317800
+ 7945 × 800 producing 6356000
+ 7945 × 7000 what gives us 55615000

= 62288800
