JSFiddle - React, Tailwind, and code Playground

JavaScript

function calculateStepLength(length,frames){
    var spriteSteps = [frames];
    var minSteps = Math.floor(length/frames);
    var extraSteps = length % frames;
    for ( i = 0; i < frames; i++ ) {
        if ( i >= extraSteps )
            spriteSteps[i] = minSteps;
        else
            spriteSteps[i] = minSteps+1;
    }
    return spriteSteps;
}
alert(
    calculateStepLength(
        32, //tile length in pixels
        4 // frames amount
    )
);