You can't.
you get it from the guy in cherrygrove that stands a little to the right of the Pokemon center ------------------------------------------------------------------------------------------------------------------- Which Pokemon Center? useless answer
Go deep into the Safari Zone and find Gold Teeth, then give them to the Warden (The guy with the bad speech) and he will give you the HM4.
he's the tubby guy in the house to the left of the Pokemon center in blackthorn city
Talk with the guy in the fanclub in Vermilion. He has the doll and will give it to you.
A guy in the underground tunnel will give you it.
deafeat all rocket in the casino
After you have defeated Gary at Silph Co. talk the nearest guy to you and he gives you a Lapras.
if you mean HM04 strength... its in the cafe in olivine city, talk to the guy and he will give it to u
get to the top of the Pokemon tower in lavender town and the old guy will give it to you when you take him back (youll need to get a silph scope in saffron to get up the last staircase)
What you have to do is first beat the gym leader in the city on thew left of the one (sorry I forgot the names) when you have the guy in front of silph co. will be asleep and you can get in. Beat the boss there and then the team rocket guy in front of the gym will be gone.
he's.... MR. POKEMON
No. all computer trades are final
talk to the Pokemon fan club guy and answer his questions
you get it from a guy in the forest after you help him get back his bird pokemon
Then that Pokemon cannot learn it. Only starter Pokemon can learn the ultimate move. No other Pokemon can learn them.
You have to have all of the Gym Badges for him to move.
go into the casino and talk to the team rocket guy then the fact that a switch is behind a poster becomes pretty obvious