120986 ÷ 80 
Our goal is to divide 120986 by 80.

Step 1:
80 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 80

Step 2:
80 goes into 12 0 times with a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Include the next digit (0) from the dividend after 12, then repeat: 120 / 80

Advancing to step 3:
If we divide 120 by 80, we get 1 and a remainder of 40.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 80 from 120 to get 40.
Append the next digit (9) from the dividend to 40 and continue with: 409 / 80

Let's proceed to step 4:
If we divide 409 by 80, we get 5 and a remainder of 9.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Subtract 400 from 409 to get 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 80

On to step 5:
80 can be fit into 98 1 times, resulting in a remainder of 18.
The number 1 becomes the next digit in our result. 
Result so far: 151.0
If we take 80 away from 98, we end up with 18.
Include the next digit (6) from the dividend after 18, then repeat: 186 / 80

Step 6:
The number 80 fits into 186 2 times, leaving a remainder of 26.
The next digit of our result is 2. 
Result so far: 1512.0
If we take 160 away from 186, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 7:
If we divide 260 by 80, we get 3 and a remainder of 20.
Put 3 as the next digit of the answer. 
Result so far: 1512.3
If we take 240 away from 260, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
When dividing 200 by 80, we get 2 with a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 1512.32
Deduct 160 from 200 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 9:
80 goes into 400 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 1512.325
The remainder is 0 after subtracting 400 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
When dividing 0 by 80, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1512.325
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 11:
0 divided by 80 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1512.325
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 1512.325, and the remainder is 0.0.