It depends on how rarely the Pokémon but it is often about 5,000 steps.
It's impossible to hatch a BAD egg.
Walk around alot and it should hatch to a Togipi
not without a glitch or hacking
5355
There is a code on Supercheats.com for fast egg hatch, but otherwise no.
somewhere around 6000 steps
Have just the Egg and a Fire type Pokemon in your team.
ride your bike back and forth in new bark town
it takes 1 hole day
It depends on the egg your hatching, but its usually around 2,000 - 5,000 steps. The fastest way to hatch it is to literally ride on your bike (: -Chii Magmar + Bike your egg will hatch within 5-10 mins.
After a certain amount of steps a Pokemon egg will hatch what will be inside will usually be the preevolved form of a Pokemon. For example if you were breeding raichu and ditto you will receive pichu from the egg.
It's the same as any other game. Ditto+ Pokemon you want to duplicate (not legendaries)xthe Pokemon daycare= Egg. Hatch the egg and you either have a duplicate Pokemon OR the first evolution of that Pokemon.