First, you find or make a product.
then you go to business seminars to meet people and network.
then you find the people in the chosen country who will buy it, or will sell it for you.
then you find the laws, regulations, licenses and tax papers you need to clear first.
Finally, for many countries, you find who and how much you have to bribe to do all these things.
Our family sells organic rice, and our son has looked into exporting our brand to Korea, but the paperwork was complicated, and then we lost last years crop to the typhoon so we decided to diversify into organic vegetables instead, since we found restaurants in Manila would buy it.
When we were planning to export, our vice president in charge of production (daughter in law) started to attend some trade fairs and local business associations to learn the business.
If you make small items, ebay and alibaba will sell them for you, but you won't make a lot of money. Network by going to meetings of trade associations, and ask with friends and family to find someone with experience is the best way to start.