However, unless you've already enabled audit logging for login failures, you won't know if there were multiple attempts. To enable audits for logins:
start -> gpedit.msc
computer configuration -> windows settings -> local policies -> audit policy
Double click on audit logon events, enable failure (and also success, if you want)
Log off, enter a bad password, then a good password, and check your security logs. You'll see the failure (and success, if you enabled that in your audit log).