Huatian Hotel brought back a batch of coal. It was originally planned to burn 0.72 tons per day, which can be burned for 14 days. After the stove was improved, it actually burned 0.16 tons less per day. How many days did this batch of coal actually burn?
华天大酒店运回一批煤，原计划每天烧0.72吨，可以烧14天，改进炉灶后，实际每天少烧0.16吨，这批煤实际烧了多少天？
<gadget id="calculator">0.72 * 14</gadget>
<output>10.08</output>

<gadget id="calculator">0.72 - 0.16</gadget>
<output>0.56</output>

<gadget id="calculator">10.08 / 0.56</gadget>
<output>18</output>

<result>18</result>