How Can I Split An .ISO File?

I have an .iso file that i am planning on putting on 3 or 4 cds. However, the .iso file is about 1.8 gbs. My cds hold a max of 700 mbs (.7 gbs). Is there any file that can split the large .iso file into 3 or 4 .iso files so i can put them on cds without messing up the data on the .iso file?