Hello,

The notation from Scientific to fixed decimal point format depends on the option under: Tools => Options => Decimal places. For instance, let's define a variable:
A←258,75*10^{-6}
and then see its value:
A=2,5875*10^{-4}
It is in the Scientific notation. Now, change the number of decimal places to, say, 8 (or greater). Then the variable will be represented as
A=0,00025875
The changed number of decimal places is defined for the entire worksheet. I think there is no way to define the number of decimal places for individual results.

Regards,
Radovan

P.S. Pay attention on the decimal separator (point or comma)