562025 ÷ 81 
The aim is to understand the frequency of 81 in 562025.

Let's proceed to step 1:
81 can be fit into 5 0 times, resulting in a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 81

Step 2:
If we divide 56 by 81, we get 0 and a remainder of 56.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 56 after subtracting 0 from 56.
Append the next digit (2) from the dividend to 56 and continue with: 562 / 81

Step 3:
When dividing 562 by 81, we get 6 with a remainder of 76.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 486 from 562, we get 76.
Take the next digit (0) from the dividend and append it to 76, then repeat: 760 / 81

Let's proceed to step 4:
When dividing 760 by 81, we get 9 with a remainder of 31.
Write down 9 as next digit of the result. 
Result so far: 69.0
If we subtract 729 from 760, we get 31.
Bring next digit (2) of the dividend behind the 31 and repeat the process: 312 / 81

On to step 5:
81 can be fit into 312 3 times, resulting in a remainder of 69.
The number 3 becomes the next digit in our result. 
Result so far: 693.0
The remainder is 69 after subtracting 243 from 312.
Fetch the next digit (5) from the dividend, attach it to 69 and continue: 695 / 81

On to step 6:
If we divide 695 by 81, we get 8 and a remainder of 47.
The number 8 becomes the next digit in our result. 
Result so far: 6938.0
Deduct 648 from 695 and we're left with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 7:
470 divided by 81 is 5 with a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 6938.5
The remainder is 65 after subtracting 405 from 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 8:
81 can be fit into 650 8 times, resulting in a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 6938.58
Subtract 648 from 650 to 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.

Going ahead to step 9:
If we divide 20 by 81, we get 0 and a remainder of 20.
The next digit of our result is 0. 
Result so far: 6938.58
Deduct 0 from 20 and we're left with 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 10:
81 can be fit into 200 2 times, resulting in a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 6938.5802
The remainder is 38 after subtracting 162 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 11:
81 goes into 380 4 times with a remainder of 56.
Use 4 as the next digit of our solution. 
Result so far: 6938.58024
Deduct 324 from 380 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 12:
81 can be fit into 560 6 times, resulting in a remainder of 74.
Write down 6 as next digit of the result. 
Result so far: 6938.580246
Subtract 486 from 560 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 13:
740 divided by 81 is 9 with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 6938.5802469
The remainder is 11 after subtracting 729 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 14:
The number 81 fits into 110 1 times, leaving a remainder of 29.
The next digit of our result is 1. 
Result so far: 6938.58024691
The remainder is 29 after subtracting 81 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

The final outcome is 6938.58024691, with a leftover of 2.9e-08.