It is planned to produce a batch of parts, and Master Wang produces 90 parts per day, which takes 12 days to complete. As a result, 18 more than the original plan were produced every day. How many days did it actually take to complete?
计划生产一批零件，王师傅每天生产90个，12天才能完成．结果每天比原计划多生产18个，实际用几天完成？
<gadget id="calculator">90 * 12</gadget>
<output>1_080</output>

<gadget id="calculator">90 + 18</gadget>
<output>108</output>

<gadget id="calculator">1_080 / 108</gadget>
<output>10</output>

<result>10</result>