yaparoff,
let arr = [2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32];
const divide = (arr, i = 4) => arr.reduce((ar, el, k) => {
k %= i;
ar[k] ? ar[k].push(el) : (ar[k] = [el])
return ar
}, [])
const [one, two, three, four] = divide(arr);
console.log(one, two, three, four);