1. In a gradual manner
   - gradually, bit by bit 
2. Proceeding in steps
   - stepwise

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

See also: gradual

Encyclopedia: Step by step

• aneurism
• aneurismal
• aneurismatic
• aneurysm
• aneurysmal
• aneurysmatic
• anew
• anfractuosity
• anfractuous
• ANG
• Angara
• Angara River
• Angas
• angel
• angel cake
• angel dust
• Angel Falls
• angel food cake
• angel shark
• angel's trumpet
• angel-wing begonia
• Angeleno
• angelfish
• angelic
• angelica