How can an economy survive with such an inflation? How can you work, knowing that the salary you agreed to at the beginning of the day, is now worth 10 times less
Salary is in foreign currency. As everything else.
I'd imagine a sort of barter system takes the place of the currency. You could also try to rely on foreign currencies.
They actively crack down on those using foreign currency, it's actually illegal to use foreign currency for transactions there - although of course everyone does and there is a massive black market for this.
Mugabe also tried to fix the price of common goods - e.g. Bread, Milk, etc.
Edit: Hmm - Apparently this has changed and they allow foreign currency trading now.
Hello, gold. Mugabe can't inflate it unless he's a real alchemist. I wonder if the US could get into this sort of situation?
Gold is somewhat impractical. Having access to a lot of foreign currencies (on the black market, if necessary) is a substitute.