When a number is divided by 53, the quotient is 13 and the remainder is 7. What is the number?
一个数除以53，商是13，余数是7，这个数是多少．
<gadget id="calculator">53 * 13</gadget>
<output>689</output>

<gadget id="calculator">689 + 7</gadget>
<output>696</output>

<result>696</result>