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

• kiss-me-over-the-garden-gate
• kiss-off
• kissable
• kisser
• Kissimmee
• Kissimmee River
• kissing
• kissing bug
• kissing cousin
• kissing disease
• kissing gate
• kissing kin
• Kissinger
• kist
• Kisumu
• Kiswahili
• kit
• kit and boodle
• kit and caboodle
• Kit Carson
• kit fox
• kit out
• kit up
• Kitakyushu
• kitambilla