Step 1:
The first step to converting 521265.19817174 to a fraction is to re-write 521265.19817174 in the form p/q where p and q are both positive integers. To start with, 521265.19817174 can be written as simply 521265.19817174/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 521265.19817174, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 521265.19817174/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 521265.19817174/1 each by 100000000:
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 521265.19817174 as a fraction:
521265/1 / 1