From Forum Nokia Wiki

You have a Real Number with a huge value. You would like to format at as you like by using the following code

const TInt KRealNumberFigureAmount = 2;
const TInt KRealNumberWidth = 8;
 
TRealFormat format;
format.iPlaces = KRealNumberFigureAmount;
format.iWidth = KRealNumberWidth;
format.iType = KRealFormatGeneral | KDoNotUseTriads;
 
TReal Longitude = (a large real number); //Pseudo assignment
TReal Latitude =(a large real number) ; //Pseudo assignment
 
TBuf8<32> ValueBuffer; 
ValueBuffer.AppendNum( Longitude, format);