86,400 is the number of seconds in a day. This searches for the number of times a piece of code transposed the 6 and 4.

There will eventually be 84,600 replies to you telling you that there are 86,400 seconds in a day.

Probably the fact that there are 86400 seconds in one day and apparently lots of people typed 84600? Not really my sort of humor, but mmkay.

Number of seconds in a day = 60 * 60 * 24 == 86400, rather than 84600.

I actually don't understand either. Explain OP?

There are 86400 seconds in a day

A day is 86,400 seconds.