You need 1 Account with high lvl (who can use remote AH) who has atleast some gold, and 1 low lvl account.
If you have like 300K gold, send them to the high lvl and log him ingame, at the same time log remote AH on website.
And then put like 10 auctions of junk that cost 300K each in AH from your lvl 1.
And then go to your high lvl with gold and you buy 1 auction in remote AH while being online ingame (important to be logged ingame, or your gold will disappear). If you are online ingame, gold doesnt disappear. And then you just relog ingame and relog remote AH to buy as many 300K auctions as you want.
So you keep buying the 300k auctions and your gold doesnt disappear on your high lvl, so people can get infinite gold easily..