1. Input the number of frames(range: 3-7) and the reference string(comma-separated) into the provided fields.
2. Click the SUBMIT button to initiate the Optimal page replacement process.
3. Click the NEXT button to process the current page in the reference string.
4. Continue clicking the NEXT button to process each page in the reference string one by one until all pages are processed.
5. Enter the total number of page faults and page hits calculated during the Optimal page replacement process, then click the SUBMIT button to finalize and record the fault and hit counts.

NOTE: In the case of a tie, FIFO is used for page replacement.