Step 1:
The first step to converting 501868.7818688 to a fraction is to re-write 501868.7818688 in the form p/q where p and q are both positive integers. To start with, 501868.7818688 can be written as simply 501868.7818688/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 501868.7818688, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 501868.7818688/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 501868.7818688/1 each by 10000000:
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 501868.7818688 as a fraction:
501869/1 / 1