march vs step on

march

verb
  • To cause someone to walk somewhere. 

  • To have common borders or frontiers 

  • To make steady progress. 

  • To walk with long, regular strides, as a soldier does. 

  • To go to war; to make military advances. 

noun
  • A region at a frontier governed by a marquess. 

  • Any of various territories with similar meanings or etymologies in their native languages. 

  • Steady forward movement or progression. 

  • A formal, rhythmic way of walking, used especially by soldiers, bands and in ceremonies. 

  • A political rally or parade 

  • Any song in the genre of music written for marching (see Wikipedia's article on this type of music) 

  • The feat of taking all the tricks of a hand. 

step on

verb
  • Used other than figuratively or idiomatically: see step, on. 

  • to adulterate a drug for the purpose of increasing its bulk, and therefore its profit; to dilute, cut. 

How often have the words march and step on occurred in a corpus of books? (source: Google Ngram Viewer )