1209 ÷ 8 = 151 R1
We're going to perform division on 1209 with 8 as the divisor.

Step 1:
8 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 1 to get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 8

Step 2:
8 goes into 12 1 times with a remainder of 4.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 8 from 12 to get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 8

Step 3:
8 goes into 40 5 times with a remainder of 0.
Write down 5 as next digit of of the result. 
Result so far: 15
Subtract 40 from 40 to get 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 8

Step 4:
8 goes into 9 1 times with a remainder of 1.
Write down 1 as next digit of of the result. 
Result so far: 151
Subtract 8 from 9 to get 1.

The final result is 151 with a remainder of 1.