Dependency Injection assistance

Job ID: 34321556

Budget: €18 – €36 EUR

Language: .net (c# or vb)
Framework: .net Framework 4.7.2

I'm testing Dependency Injection and I'm not understanding how to use it within two projects. One is for example a Console and the other a Library.
I need some structure advise.
Related categories: .NET C# Programming VB.NET