Kamar yadda yake a cikin dukkan matsalolin rarrabawa, lamba daya, da ake kira rabon, an raba shi da wani, wanda ake kira mai rarrabawa, yana samar da sakamakon da ake kira rabon. Yana ba da damar yin lissafi wanda ya shafi manyan lambobi masu yawa ta hanyar bin jerin matakai masu sauki. Ana kiran gajeren tsari na rarraba mai tsawo, wanda kusan ana amfani da shi a maimakon rarraba mai tsawo lokacin da mai rarraba yana da lamba daya kawai. Chunking (wanda aka fi sani da hanyar rabon kashi ko hanyar mai rataye) wani nau'i ne mai mahimmanci na rarraba mai tsawo a Birtaniya wanda ke taimakawa wajen fahimtar fahimtar tsarin rarraba. Yayin da algorithms masu dangantaka sun kasance tun karni na 12 AD, Henry Briggs ya gabatar da algorithm na musamman a cikin amfani da zamani.
mai rarrabawa