step–by–step

step–by–step /ˌstɛpˌbaɪˈstɛp/ adjective
step–by–step
/ˌstɛpˌbaɪˈstɛp/
adjective
Britannica Dictionary definition of STEP–BY–STEP
1 
: showing or explaining each stage in a process
2 
: happening or done in a series of steps or stages : gradual

— step by step

adverb