Long decimal results instead of scientific notation?

[Liamtoh Resu]

I would try using the logarithm of the number to create a string of zeroes and padding
the significant numbers to the end.

The log of 9.81e-21 is about -20.00833988260. Use the absolute value of the
integer. Create a loop to make the zero padded string. Pad the string with 981.

There may be a simpler way.

It is like programming in c where you have to create your own string functions.

I hope this will help get you started.