Let's divide 91745176 by 821
The aim is to understand the frequency of 821 in 91745176.

Going ahead to step 1:
821 goes into 9 0 times with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 821

Advancing to step 2:
821 goes into 91 0 times with a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 91 and we're left with 91.
Take the next digit (7) from the dividend and append it to 91, then repeat: 917 / 821

Advancing to step 3:
If we divide 917 by 821, we get 1 and a remainder of 96.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 821 from 917 and we're left with 96.
Take the next digit (4) from the dividend and append it to 96, then repeat: 964 / 821

Let's proceed to step 4:
When dividing 964 by 821, we get 1 with a remainder of 143.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtracting 821 from 964 leaves us with 143.
Grab the next digit (5) from the dividend, add it to 143, then carry on: 1435 / 821

Moving on to step 5:
821 can be fit into 1435 1 times, resulting in a remainder of 614.
The number 1 becomes the next digit in our result. 
Result so far: 111.0
The remainder is 614 after subtracting 821 from 1435.
Include the next digit (1) from the dividend after 614, then repeat: 6141 / 821

Advancing to step 6:
If we divide 6141 by 821, we get 7 and a remainder of 394.
The number 7 becomes the next digit in our result. 
Result so far: 1117.0
Deduct 5747 from 6141 and we're left with 394.
Grab the next digit (7) from the dividend, add it to 394, then carry on: 3947 / 821

On to step 7:
When dividing 3947 by 821, we get 4 with a remainder of 663.
Write down 4 as next digit of the result. 
Result so far: 11174.0
Subtract 3284 from 3947 to get 663.
Fetch the next digit (6) from the dividend, attach it to 663 and continue: 6636 / 821

Moving on to step 8:
821 goes into 6636 8 times with a remainder of 68.
Put 8 as the next digit of the answer. 
Result so far: 111748.0
If we subtract 6568 from 6636, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 9:
821 goes into 680 0 times with a remainder of 680.
The next digit of our result is 0. 
Result so far: 111748.0
The remainder is 680 after subtracting 0 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Moving on to step 10:
821 can be fit into 6800 8 times, resulting in a remainder of 232.
Use 8 as the next digit of our solution. 
Result so far: 111748.08
The remainder is 232 after subtracting 6568 from 6800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Moving on to step 11:
The number 821 fits into 2320 2 times, leaving a remainder of 678.
Write down 2 as next digit of the result. 
Result so far: 111748.082
If we take 1642 away from 2320, we end up with 678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6780, and continue the process.

Moving on to step 12:
821 can be fit into 6780 8 times, resulting in a remainder of 212.
Write down 8 as next digit of the result. 
Result so far: 111748.0828
Deduct 6568 from 6780 and we're left with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Moving on to step 13:
If we divide 2120 by 821, we get 2 and a remainder of 478.
Record the quotient 2 as the next digit in the result. 
Result so far: 111748.08282
Deduct 1642 from 2120 and we're left with 478.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4780, and continue the process.

Going ahead to step 14:
The number 821 fits into 4780 5 times, leaving a remainder of 675.
Write down 5 as next digit of the result. 
Result so far: 111748.082825
The remainder is 675 after subtracting 4105 from 4780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6750, and continue the process.

Going ahead to step 15:
If we divide 6750 by 821, we get 8 and a remainder of 182.
The number 8 becomes the next digit in our result. 
Result so far: 111748.0828258
If we take 6568 away from 6750, we end up with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Moving on to step 16:
The number 821 fits into 1820 2 times, leaving a remainder of 178.
The next digit of our result is 2. 
Result so far: 111748.08282582
If we subtract 1642 from 1820, we get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

The final result is 111748.08282582 with a remainder of 1.78e-07.