The remainder is the amount left over after division. When dividing 17 by three, the decimal answer is 5.67. Therefore, three goes into 17 five times; 3 x 5 = 15, and 17 - 15 = 2, the remainder. In Excel, one could arrive at the same result using the INT function, with =17-(3*INT(17/3)). As with all Excel formulas, cell references can be used in place of numbers; if the value 17 is in A1 and 3 is in C4, the remainder can be calculated with =MOD(A1,C4).