1. One thing at a time
   - in small stages, piecemeal, step-by-step, stepwise

1. A little bit at a time
   - piecemeal, little by little, in stages 
2. In a gradual manner
   - gradually, step by step

See also: gradual

• anastylosis
• anathema
• anathematisation
• anathematise
• anathematization
• anathematize
• anathemise
• anathemize
• Anatidae
• Anatole France
• Anatoli Karpov
• Anatoli Yevgenevich Karpov
• Anatolia
• Anatolian
• Anatolian language
• anatomic
• anatomical
• anatomical reference
• anatomical sphincter
• anatomical structure
• anatomically
• anatomise
• anatomist
• anatomize
• anatomy