When Xiao Ming calculated 30.6 divided by a number, he misplaced the decimal point of the quotient by one digit to the right, and the result was 204. What is the divisor of this division expression?
小明在计算30.6除以一个数时，由于将商的小数点向右点错了一位，结果得到了204．这个除法算式的除数是多少．
<gadget id="calculator">204 / 10</gadget>
<output>102/5 = around 20.4</output>

<gadget id="calculator">30.6 / (102/5)</gadget>
<output>1.5</output>

<result>1.5</result>