We're dividing 989669 by 80 
We want to divide 989669 by 80.

Going ahead to step 1:
When dividing 9 by 80, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 80

Moving on to step 2:
If we divide 98 by 80, we get 1 and a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 80 from 98 to get 18.
Append the next digit (9) from the dividend to 18 and continue with: 189 / 80

Going ahead to step 3:
The number 80 fits into 189 2 times, leaving a remainder of 29.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Deduct 160 from 189 and we're left with 29.
Take the next digit (6) from the dividend and append it to 29, then repeat: 296 / 80

Going ahead to step 4:
80 goes into 296 3 times with a remainder of 56.
Record the quotient 3 as the next digit in the result. 
Result so far: 123.0
Subtract 240 from 296 to get 56.
Take the next digit (6) from the dividend and append it to 56, then repeat: 566 / 80

Advancing to step 5:
80 can be fit into 566 7 times, resulting in a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 1237.0
If we subtract 560 from 566, we get 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 80

Going ahead to step 6:
80 can be fit into 69 0 times, resulting in a remainder of 69.
The next digit of our result is 0. 
Result so far: 12370.0
Subtract 0 from 69 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Let's proceed to step 7:
690 divided by 80 is 8 with a remainder of 50.
Use 8 as the next digit of our solution. 
Result so far: 12370.8
Deduct 640 from 690 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 8:
80 goes into 500 6 times with a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 12370.86
If we subtract 480 from 500, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
80 goes into 200 2 times with a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 12370.862
Subtract 160 from 200 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
The number 80 fits into 400 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 12370.8625
If we take 400 away from 400, 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:
When dividing 0 by 80, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 12370.8625
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.

Advancing to step 12:
The number 80 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 12370.8625
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.

Our division results in 12370.8625 with a remaining 0.0.