Well it's fairly simple. Here's how you find your SF:
Step 1: Hit your seed
Step 2: Chatter once
Step 3: Sweet Scent and catch the Pokémon
Step 4: Check it's gender/ nature/ ability/ species
Step 5: Find a PID frame near your calculated initial PID frame which has the exact same characteristics
Now you know your SSF. If it's not near your calculated initial PID frame then you've hit the wrong seed. When you've found it in order to know the needed chatters do the following -> Target frame - SSF - 1 (because you chattered once to find your SSF). Hope that helps.
Step 1: Hit your seed
Step 2: Chatter once
Step 3: Sweet Scent and catch the Pokémon
Step 4: Check it's gender/ nature/ ability/ species
Step 5: Find a PID frame near your calculated initial PID frame which has the exact same characteristics
Now you know your SSF. If it's not near your calculated initial PID frame then you've hit the wrong seed. When you've found it in order to know the needed chatters do the following -> Target frame - SSF - 1 (because you chattered once to find your SSF). Hope that helps.