When a number is divided by 1.96, the quotient is 0.8, and the remainder is 0.12. What is the divisor?
一个数除1.96，商0.8，余0.12，除数是多少．
<gadget id="calculator">1.96 - 0.12</gadget>
<output>1.84</output>

<gadget id="calculator">1.84 / 0.8</gadget>
<output>2.3</output>

<result>2.3</result>