Let's divide 81911893 by 517
We're looking to find how many times 517 goes into 81911893.

Going ahead to step 1:
517 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 517

Let's proceed to step 2:
When dividing 81 by 517, we get 0 with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Bring next digit (9) of the dividend behind the 81 and repeat the process: 819 / 517

On to step 3:
517 goes into 819 1 times with a remainder of 302.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 517 from 819 and we're left with 302.
Grab the next digit (1) from the dividend, add it to 302, then carry on: 3021 / 517

Step 4:
517 goes into 3021 5 times with a remainder of 436.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Deduct 2585 from 3021 and we're left with 436.
Bring next digit (1) of the dividend behind the 436 and repeat the process: 4361 / 517

Going ahead to step 5:
4361 divided by 517 is 8 with a remainder of 225.
Put 8 as the next digit of the answer. 
Result so far: 158.0
Subtracting 4136 from 4361 leaves us with 225.
Bring next digit (8) of the dividend behind the 225 and repeat the process: 2258 / 517

Moving on to step 6:
2258 divided by 517 is 4 with a remainder of 190.
The next digit of our result is 4. 
Result so far: 1584.0
Subtracting 2068 from 2258 leaves us with 190.
Fetch the next digit (9) from the dividend, attach it to 190 and continue: 1909 / 517

Step 7:
The number 517 fits into 1909 3 times, leaving a remainder of 358.
Use 3 as the next digit of our solution. 
Result so far: 15843.0
If we subtract 1551 from 1909, we get 358.
Fetch the next digit (3) from the dividend, attach it to 358 and continue: 3583 / 517

Let's proceed to step 8:
If we divide 3583 by 517, we get 6 and a remainder of 481.
The number 6 becomes the next digit in our result. 
Result so far: 158436.0
Subtracting 3102 from 3583 leaves us with 481.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4810, and continue the process.

Moving on to step 9:
When dividing 4810 by 517, we get 9 with a remainder of 157.
Put 9 as the next digit of the answer. 
Result so far: 158436.9
Deduct 4653 from 4810 and we're left with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Advancing to step 10:
517 goes into 1570 3 times with a remainder of 19.
Use 3 as the next digit of our solution. 
Result so far: 158436.93
The remainder is 19 after subtracting 1551 from 1570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 11:
190 divided by 517 is 0 with a remainder of 190.
Write down 0 as next digit of the result. 
Result so far: 158436.93
Deduct 0 from 190 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 12:
If we divide 1900 by 517, we get 3 and a remainder of 349.
Record the quotient 3 as the next digit in the result. 
Result so far: 158436.9303
If we subtract 1551 from 1900, we get 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

Going ahead to step 13:
When dividing 3490 by 517, we get 6 with a remainder of 388.
Use 6 as the next digit of our solution. 
Result so far: 158436.93036
Subtracting 3102 from 3490 leaves us with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Let's proceed to step 14:
When dividing 3880 by 517, we get 7 with a remainder of 261.
Use 7 as the next digit of our solution. 
Result so far: 158436.930367
If we subtract 3619 from 3880, we get 261.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2610, and continue the process.

Let's proceed to step 15:
If we divide 2610 by 517, we get 5 and a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 158436.9303675
Subtract 2585 from 2610 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 16:
When dividing 250 by 517, we get 0 with a remainder of 250.
The next digit of our result is 0. 
Result so far: 158436.9303675
The remainder is 250 after subtracting 0 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

The quotient of the division is 158436.9303675, and the remainder is 2.5e-07.