splitting Finasteride in 1mg doses

[LitttleBig]

I am going to order finasteride for hair reasons, but more importantly for my prostate while on. The site I have as reputable offers great prices on 5mg tablets. But, I know the normal dose is 1mg in the morning. How do you split such a small pill into five equal parts. I can see there being a pill splitter that does it in equal 1/4's but 1/5ths not so sure. Please advise. Thanks,

LB