return (new BigDecimal(guid).divide(new BigDecimal(MODULUS), 6, BigDecimal.ROUND_UP)).
double dec = (new BigDecimal(guid). divide(new BigDecimal(MODULUS), 6, BigDecimal.ROUND_UP)).
        private final double decimal () {            assert guid != null;            return (new BigDecimal(guid).divide(new BigDecimal(MODULUS),                                                6, BigDecimal.ROUND_UP)).                doubleValue ();        }