Mathematical curiosity of the day:

   100/9899     = 0 . 01 01 02 03 05 08 13 21 ...
  1000/998999   = 0 . 001 001 002 003 005 008 013 021 ...
 10000/99989999 = 0 . 0001 0001 0002 0003 0005 0008 0013 0021 ...

And in general, 10^n / (10^2n-10^n-1) displays the Fibonacci numbers in n-digit blocks of its decimal expansion.

Sorry, I just thought that was outstandingly cute.