I can walk you through on how you can record your business transaction in QuickBooks Online.
You'll need to create a bank deposit to your desired account so you can add the money that you have. After that, you may generate an expense transaction to record the amount that you'll take out for personal purposes.
To make a Deposit:
Press on + New at the left pane.
Select on Bank Deposit.
From the Account drop-down▼menu, choose the account you want to deposit the money into.
Enter the deposit amount.
Hit on Save andclose.
To create an Expense:
Tick on the + New at the left pane.
Select on Check or Expense.
Choose a Payee from the drop-down ▼ menu.
Select the Bank Account, Cash Account, or Credit Card you used to make the purchase.
In the Category details section, hit the drop-down menu ▼ to select the tax category that fits your need.
Enter the Amount of the purchase.
Press on Save and close.
For more details on what are the different ways of entering deposits in QuickBooks Online and on how to modify expenses, please visit these resources: