Alright, let's work through 7905 times 9885 step by step
7905 × 9885 = 9885 × (7905)
+ 9885 × 5 yielding 49425
+ 9885 × 00 producing 0
+ 9885 × 900 that equals 8896500
+ 9885 × 7000 what gives us 69195000

= 78140925
