How to effectively clean vinyl floors with ground-in dirt?

To effectively clean vinyl floors with ground-in dirt, start by sweeping or vacuuming the floor to remove loose dirt and debris. Then, mix a solution of warm water and a mild detergent. Use a mop or soft-bristled brush to scrub the floor, focusing on the areas with ground-in dirt. Rinse the floor with clean water and dry it thoroughly. Avoid using harsh chemicals or abrasive tools that can damage the vinyl.