When the little sloppy calculated 7.7 divided by a decimal, because the decimal point of the divisor was moved to the right, the result was 2.2. What is the original divisor of this question?
小马虎在计算7.7除以一个小数时，由于将除数的小数点向右移动了一位，结果为2.2．这道题的除数原来是多少？
<gadget id="calculator">7.7 / 2.2</gadget>
<output>3.5</output>

<gadget id="calculator">3.5 / 10</gadget>
<output>0.35</output>

<result>0.35</result>