81131619 divided by 205 
We're looking to find how many times 205 goes into 81131619.

Moving on to step 1:
205 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 205

Going ahead to step 2:
The number 205 fits into 81 0 times, leaving a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Append the next digit (1) from the dividend to 81 and continue with: 811 / 205

Step 3:
When dividing 811 by 205, we get 3 with a remainder of 196.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 615 from 811 leaves us with 196.
Fetch the next digit (3) from the dividend, attach it to 196 and continue: 1963 / 205

On to step 4:
The number 205 fits into 1963 9 times, leaving a remainder of 118.
Put 9 as the next digit of the answer. 
Result so far: 39.0
If we subtract 1845 from 1963, we get 118.
Grab the next digit (1) from the dividend, add it to 118, then carry on: 1181 / 205

Advancing to step 5:
If we divide 1181 by 205, we get 5 and a remainder of 156.
Record the quotient 5 as the next digit in the result. 
Result so far: 395.0
If we take 1025 away from 1181, we end up with 156.
Grab the next digit (6) from the dividend, add it to 156, then carry on: 1566 / 205

Advancing to step 6:
If we divide 1566 by 205, we get 7 and a remainder of 131.
Write down 7 as next digit of the result. 
Result so far: 3957.0
If we take 1435 away from 1566, we end up with 131.
Grab the next digit (1) from the dividend, add it to 131, then carry on: 1311 / 205

On to step 7:
The number 205 fits into 1311 6 times, leaving a remainder of 81.
Use 6 as the next digit of our solution. 
Result so far: 39576.0
Subtract 1230 from 1311 to get 81.
Bring next digit (9) of the dividend behind the 81 and repeat the process: 819 / 205

Moving on to step 8:
819 divided by 205 is 3 with a remainder of 204.
Put 3 as the next digit of the answer. 
Result so far: 395763.0
The remainder is 204 after subtracting 615 from 819.
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:
The number 205 fits into 2040 9 times, leaving a remainder of 195.
Put 9 as the next digit of the answer. 
Result so far: 395763.9
Subtracting 1845 from 2040 leaves us with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Let's proceed to step 10:
The number 205 fits into 1950 9 times, leaving a remainder of 105.
The next digit of our result is 9. 
Result so far: 395763.99
Subtracting 1845 from 1950 leaves us with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Our division results in 395763.99 with a remaining 0.105.