We divide 81931421 by 931
We want to figure out the number of times 81931421 can be divided by 931.

Step 1:
The number 931 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 931

Step 2:
If we divide 81 by 931, we get 0 and a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Take the next digit (9) from the dividend and append it to 81, then repeat: 819 / 931

On to step 3:
819 divided by 931 is 0 with a remainder of 819.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 819, we end up with 819.
Fetch the next digit (3) from the dividend, attach it to 819 and continue: 8193 / 931

On to step 4:
When dividing 8193 by 931, we get 8 with a remainder of 745.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we subtract 7448 from 8193, we get 745.
Bring next digit (1) of the dividend behind the 745 and repeat the process: 7451 / 931

Let's proceed to step 5:
The number 931 fits into 7451 8 times, leaving a remainder of 3.
The number 8 becomes the next digit in our result. 
Result so far: 88.0
The remainder is 3 after subtracting 7448 from 7451.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 931

Let's proceed to step 6:
The number 931 fits into 34 0 times, leaving a remainder of 34.
The number 0 becomes the next digit in our result. 
Result so far: 880.0
The remainder is 34 after subtracting 0 from 34.
Grab the next digit (2) from the dividend, add it to 34, then carry on: 342 / 931

Moving on to step 7:
342 divided by 931 is 0 with a remainder of 342.
The number 0 becomes the next digit in our result. 
Result so far: 8800.0
Subtracting 0 from 342 leaves us with 342.
Include the next digit (1) from the dividend after 342, then repeat: 3421 / 931

Advancing to step 8:
If we divide 3421 by 931, we get 3 and a remainder of 628.
The number 3 becomes the next digit in our result. 
Result so far: 88003.0
If we take 2793 away from 3421, we end up with 628.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6280, and continue the process.

Step 9:
When dividing 6280 by 931, we get 6 with a remainder of 694.
Use 6 as the next digit of our solution. 
Result so far: 88003.6
If we take 5586 away from 6280, we end up with 694.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6940, and continue the process.

Advancing to step 10:
931 can be fit into 6940 7 times, resulting in a remainder of 423.
Put 7 as the next digit of the answer. 
Result so far: 88003.67
Deduct 6517 from 6940 and we're left with 423.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4230, and continue the process.

Moving on to step 11:
931 goes into 4230 4 times with a remainder of 506.
Use 4 as the next digit of our solution. 
Result so far: 88003.674
If we subtract 3724 from 4230, we get 506.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

On to step 12:
931 can be fit into 5060 5 times, resulting in a remainder of 405.
The next digit of our result is 5. 
Result so far: 88003.6745
If we subtract 4655 from 5060, we get 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

Let's proceed to step 13:
The number 931 fits into 4050 4 times, leaving a remainder of 326.
Record the quotient 4 as the next digit in the result. 
Result so far: 88003.67454
The remainder is 326 after subtracting 3724 from 4050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Step 14:
When dividing 3260 by 931, we get 3 with a remainder of 467.
Put 3 as the next digit of the answer. 
Result so far: 88003.674543
If we subtract 2793 from 3260, we get 467.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4670, and continue the process.

Moving on to step 15:
931 goes into 4670 5 times with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 88003.6745435
If we subtract 4655 from 4670, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 16:
When dividing 150 by 931, we get 0 with a remainder of 150.
Record the quotient 0 as the next digit in the result. 
Result so far: 88003.6745435
If we subtract 0 from 150, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

The quotient of the division is 88003.6745435, and the remainder is 1.5e-07.