code: public static Number div(Number left, Number right) {
          return NumberMath.divide(left, right);
      }
docs: Divide two Numbers.
  
  Note: Method name different from 'divide' to avoid collision with BigInteger method that has
  different semantics.  We want a BigDecimal result rather than a BigInteger.
  
  @param left  a Number
  @param right another Number
  @return a Number resulting of the divide operation