To find processing orders on Alibaba, you can follow the steps below:

1. Log in to the Alibaba website and enter the "My Alibaba" page.

2. Find the "Find Buyers/Find Suppliers" option in the navigation bar on the left side of the page and select "Find Suppliers".

3. Enter the product name or keyword that needs to be processed in the "Find Suppliers" search box and click Search.

4. On the search results page, you can use the filter function to filter more accurately, and you can filter according to conditions such as region and transaction type.

5. After finding a merchant that meets the requirements, you can further view their detailed information, including company information, product description, processing service type, transaction record, etc.

6. If you are interested, you can contact the merchant directly to learn about the processing details and prices. You can also publish your own processing demand information through the "Publish Demand" page on the Alibaba website to attract merchants to contact you actively.