We look at the division of 26781253 by 821 
The aim is to understand the frequency of 821 in 26781253.

Going ahead to step 1:
If we divide 2 by 821, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (6) from the dividend after 2, then repeat: 26 / 821

Moving on to step 2:
821 can be fit into 26 0 times, resulting in a remainder of 26.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 26 and we're left with 26.
Bring next digit (7) of the dividend behind the 26 and repeat the process: 267 / 821

Let's proceed to step 3:
The number 821 fits into 267 0 times, leaving a remainder of 267.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 267 and we're left with 267.
Append the next digit (8) from the dividend to 267 and continue with: 2678 / 821

Advancing to step 4:
821 can be fit into 2678 3 times, resulting in a remainder of 215.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 2463 from 2678, we get 215.
Include the next digit (1) from the dividend after 215, then repeat: 2151 / 821

On to step 5:
821 goes into 2151 2 times with a remainder of 509.
Use 2 as the next digit of our solution. 
Result so far: 32.0
Deduct 1642 from 2151 and we're left with 509.
Include the next digit (2) from the dividend after 509, then repeat: 5092 / 821

Step 6:
821 goes into 5092 6 times with a remainder of 166.
Put 6 as the next digit of the answer. 
Result so far: 326.0
Subtracting 4926 from 5092 leaves us with 166.
Grab the next digit (5) from the dividend, add it to 166, then carry on: 1665 / 821

On to step 7:
821 can be fit into 1665 2 times, resulting in a remainder of 23.
The number 2 becomes the next digit in our result. 
Result so far: 3262.0
Deduct 1642 from 1665 and we're left with 23.
Grab the next digit (3) from the dividend, add it to 23, then carry on: 233 / 821

On to step 8:
821 goes into 233 0 times with a remainder of 233.
Record the quotient 0 as the next digit in the result. 
Result so far: 32620.0
Subtract 0 from 233 to get 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Advancing to step 9:
When dividing 2330 by 821, we get 2 with a remainder of 688.
The number 2 becomes the next digit in our result. 
Result so far: 32620.2
The remainder is 688 after subtracting 1642 from 2330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6880, and continue the process.

Moving on to step 10:
If we divide 6880 by 821, we get 8 and a remainder of 312.
The next digit of our result is 8. 
Result so far: 32620.28
If we take 6568 away from 6880, we end up with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Step 11:
When dividing 3120 by 821, we get 3 with a remainder of 657.
The number 3 becomes the next digit in our result. 
Result so far: 32620.283
Subtract 2463 from 3120 to get 657.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6570, and continue the process.

Going ahead to step 12:
When dividing 6570 by 821, we get 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 32620.2838
If we subtract 6568 from 6570, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 13:
When dividing 20 by 821, we get 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 32620.2838
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 14:
821 can be fit into 200 0 times, resulting in a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 32620.2838
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The quotient of the division is 32620.2838, and the remainder is 2e-05.