Simplest way to get the achievement 1st time:
Go to kick off mode - Select a 5 star team for yourself, select a 1 or 1/2 star team for the opponent.
Put the difficulty on amateur and 4 mins per half.
Keep the ball in play (just keep the ball in your defence) for the first 89 minutes, then go and score a goal when the timer is at 90 minutes.
Simple! Achievement unlocked! Takes around 8-9 mins.