Division of Natural Numbers
D : d = c
The terms involved in a division are called, D, the dividend and, d, the divisor. The result, c, is the quotient.
Types of Divisions
1. Exact Division:
A division is exact when the remainder is zero.
D = d · c
15 = 5 · 3
2. Not exact division:
A division is no exact when the remainder is not zero.
D = d · c + r
17 = 5 · 3 + 2
Properties of the Division of Natural Numbers
1. No closure
The result of dividing two natural numbers is not always another natural number.
2 : 6 
2. No commutative:
a : b ≠ b : a
6:2 ≠ 2:6
3. Zero divided by a number equals zero.
0 : a = 0
0 : 5 = 0
4. Division by 0 is undefined.
Dividing Integers, Dividing Decimal Numbers.
