In a division formula, the quotient and remainder are both 6, the divisor is twice the quotient, and what is the dividend.
在一道除法算式中，商和余数都是6，除数是商的2倍，被除数是多少．
<gadget id="calculator">6 * 2</gadget>
<output>12</output>

<gadget id="calculator">6 * 12</gadget>
<output>72</output>

<gadget id="calculator">72 + 6</gadget>
<output>78</output>

<result>78</result>