When a number is divided by 47, the quotient is 9 and the remainder is 1. What is the dividend?
一个数除以47，商是9，余数是1，被除数是多少．
<gadget id="calculator">9 * 47</gadget>
<output>423</output>

<gadget id="calculator">423 + 1</gadget>
<output>424</output>

<result>424</result>