Let's divide 696410 by 81
The aim is to understand the frequency of 81 in 696410.

Going ahead to step 1:
If we divide 6 by 81, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (9) from the dividend, attach it to 6 and continue: 69 / 81

Advancing to step 2:
81 goes into 69 0 times with a remainder of 69.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 69 and we're left with 69.
Fetch the next digit (6) from the dividend, attach it to 69 and continue: 696 / 81

Step 3:
696 divided by 81 is 8 with a remainder of 48.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 648 from 696 and we're left with 48.
Take the next digit (4) from the dividend and append it to 48, then repeat: 484 / 81

On to step 4:
81 goes into 484 5 times with a remainder of 79.
The next digit of our result is 5. 
Result so far: 85.0
Subtract 405 from 484 to get 79.
Bring next digit (1) of the dividend behind the 79 and repeat the process: 791 / 81

Advancing to step 5:
When dividing 791 by 81, we get 9 with a remainder of 62.
The number 9 becomes the next digit in our result. 
Result so far: 859.0
Deduct 729 from 791 and we're left with 62.
Grab the next digit (0) from the dividend, add it to 62, then carry on: 620 / 81

Let's proceed to step 6:
When dividing 620 by 81, we get 7 with a remainder of 53.
Write down 7 as next digit of the result. 
Result so far: 8597.0
Subtracting 567 from 620 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Going ahead to step 7:
81 can be fit into 530 6 times, resulting in a remainder of 44.
Put 6 as the next digit of the answer. 
Result so far: 8597.6
Deduct 486 from 530 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 8:
440 divided by 81 is 5 with a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 8597.65
If we subtract 405 from 440, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 9:
When dividing 350 by 81, we get 4 with a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 8597.654
If we take 324 away from 350, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 10:
81 goes into 260 3 times with a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 8597.6543
The remainder is 17 after subtracting 243 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 11:
If we divide 170 by 81, we get 2 and a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 8597.65432
Subtract 162 from 170 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.

Moving on to step 12:
80 divided by 81 is 0 with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 8597.65432
Subtracting 0 from 80 leaves us 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.

Advancing to step 13:
If we divide 800 by 81, we get 9 and a remainder of 71.
The number 9 becomes the next digit in our result. 
Result so far: 8597.6543209
If we subtract 729 from 800, we get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Step 14:
When dividing 710 by 81, we get 8 with a remainder of 62.
The number 8 becomes the next digit in our result. 
Result so far: 8597.65432098
If we take 648 away from 710, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

In conclusion, the division gives 8597.65432098 with a balance of 6.2e-08.