When Xiaohong calculated 30.6 divided by a decimal, because the decimal point was wrong by one digit to the left, the result was 204. What is the divisor of this question?
小红在计算30.6除以一个小数时，由于小数点向左点错了一位，结果得204，这道题的除数是多少
<gadget id="calculator">30.6 / 204</gadget>
<output>0.15</output>

<gadget id="calculator">0.15 * 10</gadget>
<output>1.5</output>

<result>1.5</result>