private static int getDecDegreeDegFrac(final int degE6) {
        final long rounded = roundToPrecision(degE6, 100000L);
        return (int) (rounded % 100000L);
    }
Get the fractional part of the longitude degrees scaled up by 10^5 (Decimal Degree format).
main/src/main/java/cgeo/geocaching/location/Geopoint.java