This article explains how to connect two additional monitors to a Dell laptop using a docking station. However, these steps remain the same for most laptops and docking stations.
DELL Work From Home Laptop Dual Display Setup
Before you begin, you'll need to gather the following: your laptop and its power cord, your docking station and its power cord, and your monitors and their power cords and connectors.
Once you have all of your hardware ready and you have confirmed that your laptop and docking station are compatible and the monitors you want to connect support the resolution/refresh rate you want, you can easily connect your monitors to your Dell laptop.
Connect your laptop to a power outlet and turn it on.