We're dividing 81911544 by 980 
We want to figure out the number of times 81911544 can be divided by 980.

Step 1:
980 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 980

Step 2:
The number 980 fits into 81 0 times, leaving a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Grab the next digit (9) from the dividend, add it to 81, then carry on: 819 / 980

Going ahead to step 3:
The number 980 fits into 819 0 times, leaving a remainder of 819.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 819 to get 819.
Append the next digit (1) from the dividend to 819 and continue with: 8191 / 980

On to step 4:
8191 divided by 980 is 8 with a remainder of 351.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 7840 away from 8191, we end up with 351.
Take the next digit (1) from the dividend and append it to 351, then repeat: 3511 / 980

Moving on to step 5:
The number 980 fits into 3511 3 times, leaving a remainder of 571.
Put 3 as the next digit of the answer. 
Result so far: 83.0
Deduct 2940 from 3511 and we're left with 571.
Bring next digit (5) of the dividend behind the 571 and repeat the process: 5715 / 980

Going ahead to step 6:
980 goes into 5715 5 times with a remainder of 815.
Put 5 as the next digit of the answer. 
Result so far: 835.0
If we take 4900 away from 5715, we end up with 815.
Grab the next digit (4) from the dividend, add it to 815, then carry on: 8154 / 980

On to step 7:
If we divide 8154 by 980, we get 8 and a remainder of 314.
The next digit of our result is 8. 
Result so far: 8358.0
Deduct 7840 from 8154 and we're left with 314.
Grab the next digit (4) from the dividend, add it to 314, then carry on: 3144 / 980

Advancing to step 8:
980 can be fit into 3144 3 times, resulting in a remainder of 204.
Record the quotient 3 as the next digit in the result. 
Result so far: 83583.0
The remainder is 204 after subtracting 2940 from 3144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Advancing to step 9:
When dividing 2040 by 980, we get 2 with a remainder of 80.
Record the quotient 2 as the next digit in the result. 
Result so far: 83583.2
The remainder is 80 after subtracting 1960 from 2040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 10:
When dividing 800 by 980, we get 0 with a remainder of 800.
Use 0 as the next digit of our solution. 
Result so far: 83583.2
The remainder is 800 after subtracting 0 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Let's proceed to step 11:
When dividing 8000 by 980, we get 8 with a remainder of 160.
Use 8 as the next digit of our solution. 
Result so far: 83583.208
If we subtract 7840 from 8000, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 12:
The number 980 fits into 1600 1 times, leaving a remainder of 620.
The number 1 becomes the next digit in our result. 
Result so far: 83583.2081
Subtract 980 from 1600 to get 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Step 13:
980 goes into 6200 6 times with a remainder of 320.
Put 6 as the next digit of the answer. 
Result so far: 83583.20816
Deduct 5880 from 6200 and we're left with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 14:
980 can be fit into 3200 3 times, resulting in a remainder of 260.
The next digit of our result is 3. 
Result so far: 83583.208163
Deduct 2940 from 3200 and we're left with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Moving on to step 15:
2600 divided by 980 is 2 with a remainder of 640.
Write down 2 as next digit of the result. 
Result so far: 83583.2081632
Subtracting 1960 from 2600 leaves us with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Moving on to step 16:
980 goes into 6400 6 times with a remainder of 520.
Use 6 as the next digit of our solution. 
Result so far: 83583.20816326
Subtracting 5880 from 6400 leaves us with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Our division results in 83583.20816326 with a remaining 5.2e-07.