The tricky part is breaking the bead.
First option,with help. Place the wheel level with the floor,steady the bike but lean the sidestand into the rim of the tyre to break the bead. Or better still,use a friends bike to achieve this.
Second option (only if you have a wooden beam or such like). Lay wheel flat as above,anchor a long beam under a tow bar,bottom sill of a car etc,then use a shorter block in between the beam and the tyre rim. Use the fulcrum of the pivot point to gain advantage when pulling down on the beam.
Third option,lay wheel flat and place something like a scaffold plank or similar end on right up to the tyre rim. Hold both items steady,then slowly drive a car wheel up the plank.
4th option,a bench vice.
When refitting the tyre to the rim,use either soapy water,or dry talcum powder to aid the bead seating correctly when inflating.
If you are inflating the tyre without the use of a high pressure airline,unscrew the valve core before you start. A good footpump will seat the tyre on the bead,providing the bead is either very well lubed with soapy water,or if fitting it dry,use plenty of talc.
Edit: Yep,and what Kam said. Forgot about that one.