How i can put/integrate payment gateway in my website

I want to put payment gateway in my website .
Can you please let me know how i can put and what all is required.

You can integrate your payment gateway easily with JotForm. After that, you can embed your form to your website. When you copy the embedded code you need to paste the embedded code into your webpage where you would like to display it. If you have any question or issues, please do not hesitate contacting us. We will be glad to assist you.