Turn the bike up-side-down and balance securely.
Have a container handy, in which to keep the items you remove.
Ignore that tabby
Gear assembly thingie
Remove nut
Remove spring
Remove other nut
Other side. Remove nut. Remove yellow thingie.
Remove other fixture nut and bolt.
Remove chain
Remove wheel.
There's that tabby again!
Handy tool for removing tires from rims
Tire removed from the rim
Tube removed from the tire. Check the tire for any embedded sharp objects.
Replacement tube.
Pump the tube slightly. Slightly.
Insert slightly inflated tube into tire.
Prepare to attach tire to rim.
Insert valve into hole first.
There's that tabby again, patiently watching!
Pump the tube and bounce the tire a bit to confirm all is in place.
Attach wheel to bike
Place chain on gear thingie.
Ensure chain is properly in place on large gear thingie.
Attach bolts and nuts.
Make sure that yellow thing is firmly in place.
Attach that other thing.
Insert the spring.
Attach the gear assembly thing again.
Turn the bike upright. Pump the tire a bit more.
Put the valve cap on.