The divisor is 50, the quotient is 9, the remainder is 45, what is the dividend.
除数是50，商是9，余数是45，被除数是多少．
<gadget id="calculator">50 * 9</gadget>
<output>450</output>

<gadget id="calculator">450 + 45</gadget>
<output>495</output>

<result>495</result>