Final answer:
The most economical step to extend DSL Internet access to your employees is to configure the DSL broadband connection at your computer to be shared with others.
Step-by-step explanation:
The most economical step you can take to extend DSL Internet access to your employees is to configure the DSL broadband connection at your computer to be shared with others. By doing this, you can create a network and allow other computers connected to it to access the internet through your computer's DSL adapter. This eliminates the need for additional equipment or devices.