Easy. First, pop your new bearings in the freezer for a bit. Yes, the freezer – they’ll shrink a bit.
Take out the 20mm (a spring clip thing) or QR adaptors (they just pull out).
I now use a short piece of steel rod to knock out each bearing, working around the inside edge from the opposite side. Take your time and be gentle. From memory there is a spacer between the two bearings, but you should be able to move it to the side and rotate it as you work your way around.
When the bearings are out, I give the hub a quick clean and then push in the new bearings. You can make a press like a headset press, or use a QR and some spacers, or just do a gentle tap-fit. check everything is square as you go.
Don’t forget to put the spacer back in the middle before you fit the 2nd bearing.