Let's divide 426957 by 81
The aim is to understand the frequency of 81 in 426957.

On to step 1:
81 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 81

Let's proceed to step 2:
If we divide 42 by 81, we get 0 and a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Append the next digit (6) from the dividend to 42 and continue with: 426 / 81

Let's proceed to step 3:
When dividing 426 by 81, we get 5 with a remainder of 21.
The next digit of our result is 5. 
Result so far: 5.0
If we take 405 away from 426, we end up with 21.
Append the next digit (9) from the dividend to 21 and continue with: 219 / 81

Advancing to step 4:
81 can be fit into 219 2 times, resulting in a remainder of 57.
The number 2 becomes the next digit in our result. 
Result so far: 52.0
Subtracting 162 from 219 leaves us with 57.
Append the next digit (5) from the dividend to 57 and continue with: 575 / 81

On to step 5:
575 divided by 81 is 7 with a remainder of 8.
Write down 7 as next digit of the result. 
Result so far: 527.0
If we take 567 away from 575, we end up with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 81

Moving on to step 6:
When dividing 87 by 81, we get 1 with a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 5271.0
If we take 81 away from 87, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
60 divided by 81 is 0 with a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 5271.0
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 8:
When dividing 600 by 81, we get 7 with a remainder of 33.
Write down 7 as next digit of the result. 
Result so far: 5271.07
Deduct 567 from 600 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 9:
330 divided by 81 is 4 with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 5271.074
If we subtract 324 from 330, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 10:
81 goes into 60 0 times with a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 5271.074
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 11:
81 goes into 600 7 times with a remainder of 33.
Put 7 as the next digit of the answer. 
Result so far: 5271.07407
Deduct 567 from 600 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 12:
81 goes into 330 4 times with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 5271.074074
Deduct 324 from 330 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 13:
When dividing 60 by 81, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 5271.074074
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 14:
When dividing 600 by 81, we get 7 with a remainder of 33.
The next digit of our result is 7. 
Result so far: 5271.07407407
If we take 567 away from 600, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

After the division, we end up with 5271.07407407 and a remainder of 3.3e-08.