It took Mr. Li 23 hours to go to Beijing by train from Chengdu, and the train travels 166 kilometers per hour. How far is it from Chengdu to Beijing?
李老师从成都乘火车去北京用了23小时，火车每小时行166千米．成都到北京有多少千米？
<gadget id="calculator">166 * 23</gadget>
<output>3_818</output>

<result>3_818</result>