Division in Other Bases Most division models involve equal sharing of a total among several groups. However, the actual division process varies greatly at the concrete level, depending on whether the divisor represents the number of groups or the size of each group. Write "twenty divided by four" in bases three and four, and draw a picture of what the completed division would look like in each base, for each of the two types of division problem. base three base four "twenty divided by four is five" in numerals: concrete [proportional] representation for twenty: Measurement division (twenty divided into groups of four how many groups?) Partitive division (twenty divided into four groups, how many in each group?)