I used the replicate to path function Ruth , this might help you. Basically you would draw the oblong ( make a copy) and the circle then open the replicate panel and with your circle selected choose the object on path tool, click on show grab handle then drag your circle on to the rectangle and choose how many repeats you want. When you are happy with it select release copies then go back to your copy rectangle and do an interal and external offset to the width of the border you want then just centre align everything - sorry I'm better at doing than expalining !
Attachment 208205