arr Chunking

function splitArr (arr, divNum){
	
	tempArr = [];
	finalArr = [];
	
	var arrayLength = arr.length;
	var counter =  0;
	
	if(arrayLength % divNum === 0){
		
		for(var x = 0; x < divNum; x++ ){	
		
		    //we need to figure out if 
			for(var y = counter; y < counter + divNum; y++){
				//push the specific instance to the array;
				tempArr.push(arr[y]);
				counter++;
			}
			
			finalArr.push(tempArr);
			tempArr = [];
		}
		
	} else {
		//we know that it is not possible without leftovers or further optimization.
		throw new Error();
	}
	
}