1.First of all, internal table for this process in order to determine whether the reference was valid or invalid memory access.
2.If the reference is invalid, then we will terminate the process. If the reference is valid, but we have not bought in that page so now we just page it in.
3.Then we locate the free frame list in order to find the free frame.
4.Now a disk operation is scheduled in order to read the desired page into the newly allocated frame.
5.When the disk is completely read, then the internal table is modified that is kept with the process, and the page table that mainly indicates the page is now in memory.
6.Now we will restart the instruction that was interrupted due to the trap. Now the process can access the page as though it had always been in memory