Step 1:
The first step to converting 9812.870021594 to a fraction is to re-write 9812.870021594 in the form p/q where p and q are both positive integers. To start with, 9812.870021594 can be written as simply 9812.870021594/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 9812.870021594, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 9812.870021594/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 9812.870021594/1 each by 1000000000:
Step 3:
Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out, which leads to the following answer for 9812.870021594 as a fraction:
78503/8 / 1