public static Number div(Number left, Number right) {
        return NumberMath.divide(left, right);
    }
public static Number div ( Number left , Number right ) { return NumberMath . divide ( left , right ) ; }
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