How to make numbers appear on a new line, and not in one?

Question

Python

import random
import time

while True:
    time.sleep(0.10)
    with open("find.txt", "a") as file:
        for i in range(8):
            a = random.randint(1, 9)
            file.write(str(a))
    file.close()

it turns out: 62135457478176393894952224388141911487493933511942484696734237544717466723779738787746727979311699462377575911892166846597235769921552223663713716821587652568181511457145237959815197833175864411

How do you make it so:
12,357,652
54,671,455
12,345,346
70,647,458
13,429,539

Answer 1

file.write('\n') after inner loop.