easiest way to run assembly code on computer code example

Example: how to run assembly code

Warning: never run code you don't know. In the case of assembly it can crash your system, or worse.

Assuming your assembly code is x86, And assuming it doesn't look like only rows of "01101010" or "de876f1a6bc37" And assuming that you are on Windows,

Set up your development environment: https://ccm.net/faq/1559-compiling-an-assembly-program-with-nasm#compiling-an-assembly-program-with-nasm-for-windows
Copy the assembly code
Open notepad
Paste the code
Save on your desktop as "assembly.asm"
Hold shift, right click on your desktop, select "Open command window here" from the dropdown
Enter the following two commands:
nasm -f win32 assembly.asm -o test.o
ld test.o -o assembly.exe
Again, be careful with assembly. You also might not get output, so you won't know the output of your program.