Answer:
It's should have take more than 2500mn years. This is due to the different calamities and spin of earth too and thus this separation of landscapes happened!
Step-by-step explanation:
The continents could have gotten so far because of plate tectonic movement. We know that the plates are always moving so if these plates were very active then it would have caused supercontinent pangea to drift apart. This process must have taken more than a million years to happen.