Upload file chunk by chunk using threads in c# console app

Question

I have to upload a file chunk by chunk and if the process breaks in between again need to upload rest of the chunk.

 

Example: Suppose if we are uploading 10MB file chunk by chunk i.e 2MB each chunk.

If the process stops after 6mb of data is uploaded again i should be uploading the rest 4MB.

 

How to do this using Threads using C#.