Format for win98

I have a 19gig drivce that had win2000 installed. I had to fdisk it because my music software sound card was not compatible. I was told to load win98. Which I have. My question is After I have created the partition with fat32 what is the command from A:/ to format the drive? Is it format c: /s

How do I create more than one partition? Do I do this before the formating? I wanted one to be 5gig and the rest the remaining hard disk. The fivce gig would be operating system etc.. and the other forfiles.