The process is usually:

- Help someone get control over the country, through elections or by force. Or just buy whoever wins.

- Approve loans at high interest rates and allow that person to keep the majority of the money so it never gets spent in the country itself.

- When the country defaults on the debt, start a re-structuring process involving the neocolonization: privatize everything, pass unequal trade treaties, pass unfair labor regulations... effectively enslave the country.

Low wages and no social mobility and no influence in government is almost undistinguishable from slavery. And that's the situation in many poor countries.