Easy, where should I start... Hmm...
First... Do these
1.Hatch Togepi egg from Elm
2.Get someone with Pokerus
3.Get to Kanto
After doing these, you can call Elm to verify you target seed, like Coin Flip. You can use the latest RNG reporter to check this.
Calling Elm each time increases the frame by one as well, you can use radio to advance it but Elm is the easiest, risk free, consistent method. It's like flipping Journal.
So, when calling Elm to verify your seed, your frame will increase as well. Keep this in mind. I am not sure how roamers will affect the RNG though.
While breeding, just copy the seed to the RNG reporter (Not time finder) to check which Elm responses you will get.