A supermarket held a promotional event. Buy five boxes of pure milk and get two free. Each box of pure milk is 3.66 yuan. Aunt Wang wants to buy 14 boxes. How much did you spend in total?
某超市举办促销活动，纯牛奶买五盒送两盒，纯牛奶每盒3.66元，王阿姨要买14盒，一共花了多少元？
<gadget id="calculator">5 + 2</gadget>
<output>7</output>

<gadget id="calculator">14 / 7</gadget>
<output>2</output>

<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<gadget id="calculator">3.66 * 10</gadget>
<output>36.6</output>

<result>36.6</result>