card numbering does not match computer numbering

I have a Nikon D3100 with file number sequence set to OFF. Each card starts with 001 in the camera, but when uploaded to the computer, the numbers run consecutively (ex. Card #1 001-500, Card #2 001-300. In computer, Card #1 runs 001-500, Card #2 runs 501-800). Is there some way I can get the computer numbering to match the card-in-camera numbering?