For large purchases you may opt to pay in payments, this can be done by using PayPal.
To be able to make payments you must have a PayPal account. On checkout, choose PayPal option to pay.
Once you click to complete your order, the website will send you to Paypal. You then login to your PayPal account. Under the 'Pay With' section, you can press the 'Apply Now' link to apply for PayPal Credit which will allow you to to pay off your purchase in 6 Months in payments.