How to handle scrolling in an inner div tag with Robot Framework?

I am developing a script and need to scroll down the list which is in the middle of the screen with another div tag.

I have used JavaScript like below but it could not help

Execute Javascript    window.scrollTo(800,800)

Execute Javascript    ${element}.scrollTop = ${element}.scrollHeight

Where ${element} is the inner div's locator and my screen resolution is 1600x900

Please help me