code: public static String valueString(long value, Denomination denomination) {
        BigDecimal d = BigDecimal.valueOf(value);
        d = d.divide(denomination.getOneUnitInSatoshis());
        return d.toPlainString();
     }
docs: Get the given value in satoshis as a string on the form "10.12345" using
  the specified denomination.
  <p>
  This method only returns necessary decimal points to tell the exact value.
  If you wish to display all digits use
  {@link CoinUtil#fullValueString(long, Denomination)}
  
  @param value
  The number of satoshis
  @param denomination
  The denomination to use
  @return The given value in satoshis as a string on the form "10.12345".