code: @Nonnull
    @CheckReturnValue
    public CSSSimpleValueWithUnit divide (@Nonnull final BigDecimal aDivisor)
    {
      return divide (aDivisor, CCSS.CSS_MAXIMUM_FRACTION_DIGITS, RoundingMode.HALF_UP);
    }
docs: Get a new object with the same unit but an divided value. By default
  {@link CCSS#CSS_MAXIMUM_FRACTION_DIGITS} is used as scale and
  {@link RoundingMode#HALF_UP} is used as rounding mode.
  
  @param aDivisor
  The divisor to use. May not be <code>null</code>.
  @return A new object. Never <code>null</code>.
  @since 3.7.3