In development stores the orders can be placed but that too will be the test orders and not the real time orders. To place that you will nee to set-up the Bogus Gateway from Store settings -> payment Providers -> Third-party payment providers -> Select Bogus Gateway
And, from front-end while placing an order you will need to use
Card Number :- 1
Card Name :- Bogus Gateway
Expiry Date :- Anything
The above will help you in placing the orders in development store too.