To deploy Neo4j in the Azure Marketplace, you need to have an Azure account. At the time of this writing, there is a $200 promotion for signing up for a free account. Once logged in to your Microsoft Azure account, you can search for the Neo4j Enterprise Edition template by Neo Technology, Inc. and click on "Continue" to proceed. The deployment process involves configuring basic settings, such as creating an account to access provisioned compute instances and selecting the region where cloud resources will be deployed. Additionally, you need to configure Neo4j settings, including choosing the version of Neo4j to deploy, providing an initial password for the DBMS admin user, and selecting the Azure VM within which to run Neo4j. The deployment process also involves defining a virtual network, specifying the subnet for clustered VMs, and agreeing to the licensing agreement. Once the license agreement is accepted, the Azure Marketplace will provision all required resources defined in the template, including VMs, private and public IP addresses, load balancers, etc. After successful deployment, you can access Neo4j using its public IP address and connect to it using the Bolt URI or SSH.