1001(9)
Lets divide 1000101 by 101
101 / 1 = 0
101 / 10 = 0
101 / 100 = 0
101 / 1000 = 1
TWO'S COMPLIMENT
0101
1010
1011
1000 + 1011 = 1|0011
101 / 111 = 1
TWO'S COMPLIMENT
101
010
011
111 + 011 = 1|010
101 / 100 = 0
101 / 1000 = 1
(see above)
1000101 / 101 = 0001101r11