82675818 divided by 421 
The aim is to understand the frequency of 421 in 82675818.

Moving on to step 1:
The number 421 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 421

Let's proceed to step 2:
421 goes into 82 0 times with a remainder of 82.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 82 to get 82.
Bring next digit (6) of the dividend behind the 82 and repeat the process: 826 / 421

On to step 3:
When dividing 826 by 421, we get 1 with a remainder of 405.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 405 after subtracting 421 from 826.
Grab the next digit (7) from the dividend, add it to 405, then carry on: 4057 / 421

Advancing to step 4:
4057 divided by 421 is 9 with a remainder of 268.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
If we take 3789 away from 4057, we end up with 268.
Fetch the next digit (5) from the dividend, attach it to 268 and continue: 2685 / 421

Step 5:
421 can be fit into 2685 6 times, resulting in a remainder of 159.
Write down 6 as next digit of the result. 
Result so far: 196.0
The remainder is 159 after subtracting 2526 from 2685.
Take the next digit (8) from the dividend and append it to 159, then repeat: 1598 / 421

Advancing to step 6:
When dividing 1598 by 421, we get 3 with a remainder of 335.
The number 3 becomes the next digit in our result. 
Result so far: 1963.0
If we take 1263 away from 1598, we end up with 335.
Take the next digit (1) from the dividend and append it to 335, then repeat: 3351 / 421

Advancing to step 7:
When dividing 3351 by 421, we get 7 with a remainder of 404.
Put 7 as the next digit of the answer. 
Result so far: 19637.0
If we subtract 2947 from 3351, we get 404.
Fetch the next digit (8) from the dividend, attach it to 404 and continue: 4048 / 421

Step 8:
421 goes into 4048 9 times with a remainder of 259.
The next digit of our result is 9. 
Result so far: 196379.0
Deduct 3789 from 4048 and we're left with 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Advancing to step 9:
The number 421 fits into 2590 6 times, leaving a remainder of 64.
Write down 6 as next digit of the result. 
Result so far: 196379.6
Subtracting 2526 from 2590 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 10:
640 divided by 421 is 1 with a remainder of 219.
Write down 1 as next digit of the result. 
Result so far: 196379.61
If we subtract 421 from 640, we get 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Moving on to step 11:
When dividing 2190 by 421, we get 5 with a remainder of 85.
The next digit of our result is 5. 
Result so far: 196379.615
If we take 2105 away from 2190, we end up with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Going ahead to step 12:
850 divided by 421 is 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 196379.6152
Subtract 842 from 850 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 13:
421 can be fit into 80 0 times, resulting in a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 196379.6152
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 14:
If we divide 800 by 421, we get 1 and a remainder of 379.
The next digit of our result is 1. 
Result so far: 196379.615201
If we subtract 421 from 800, we get 379.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3790, and continue the process.

On to step 15:
421 goes into 3790 9 times with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 196379.6152019
Subtracting 3789 from 3790 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 16:
When dividing 10 by 421, we get 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 196379.6152019
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 196379.6152019 and a remainder of 1e-08.