Ok so your husband gets stamped in for a year on each entry and you will get stamped in for 90 days.
You can both leave as many times as you like in the year the visas valid. Your husband can do 90 day reports at your local immigration office. You have to leave before 90 days are over.
Or get the O-A visa from your home country and that gets you stamped in for a year on each entry. Exit and enter just before it’s used by date and get almost 2 years out of one visa.