A student used a calculator to calculate a problem. In the last step, he divided by 10 and multiplied the wrong answer by 10. Therefore, the number of wrong answers was 23.4. What should be the correct answer?
一个学生用计算器算题，在最后一步除以10，错误的乘10了，因此得出的错误答案数是23.4正确应该是多少．
<gadget id="calculator">23.4 / 10</gadget>
<output>2.34</output>

<gadget id="calculator">2.34 / 10</gadget>
<output>0.234</output>

<result>0.234</result>