Step 1:
The first step to converting 1999803.06564 to a fraction is to re-write 1999803.06564 in the form p/q where p and q are both positive integers. To start with, 1999803.06564 can be written as simply 1999803.06564/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 1999803.06564, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 1999803.06564/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 1999803.06564/1 each by 100000:
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 1999803.06564 as a fraction:
1999803/1 / 1