GNU/Linux Ubuntu 20.04 64 bit Installing 32 bit Libraries Guide
Hi! The Tutorial shows you Step-by-Step How to Find and Install 32 bit Libraries to Execute Binary on Ubuntu 20.04 Focal LTS 64 bit GNU/Linux.
And First, Try to Install the Usually Needed Dependencies for Ubuntu i386 Systems by Following the Linked Guide.

1. Terminal Getting-Started Guide
How to QuickStart with Command Line on Ubuntu GNU/Linux:
First Update the Apt Repo Sources with:
sudo apt update
Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then see: How to Enable sudo.