how many steps (minimum) for a wynaut egg to hatch in Pokemon emerald
It will take you between 5355 - 5609 steps to hatch your wynaut egg, but the amount of time it takes can be halved if you have a Pokemon in your party with the ability flame body or magma armor, such as Ponyta or Slugma :)
Source :http://bulbapedia.bulbagarden.net/wiki/Wynaut_(Pok%C3%A9mon)