In a division formula, the divisor is 7, the quotient is 13, and the remainder is 4. What is the dividend?
一个除法算式，除数是7，商是13，余数是4，那么被除数是多少．
<gadget id="calculator">13 * 7</gadget>
<output>91</output>

<gadget id="calculator">91 + 4</gadget>
<output>95</output>

<result>95</result>