Step 1:
The first step to converting 623571.74065405 to a fraction is to re-write 623571.74065405 in the form p/q where p and q are both positive integers. To start with, 623571.74065405 can be written as simply 623571.74065405/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 623571.74065405, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 623571.74065405/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 623571.74065405/1 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 623571.74065405 as a fraction:
623572/1 / 1