I need the first 4 digits after the front 0s in a decimal while also keeping the 0s in the output without getting scientific notation.

Would like to take

`0.0000000000000000000000634546534`

and get

`0.00000000000000000000006345`

but not

`6.345e-23`

.

But would also like to take

`231.00942353246`

and get

`231.009423`

.

Thank you.

Source: Python-3x Questions