We look at the division of 4316331 by 81 
The aim is to understand the frequency of 81 in 4316331.

Moving on to step 1:
If we divide 4 by 81, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 81

Advancing to step 2:
When dividing 43 by 81, we get 0 with a remainder of 43.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 43 after subtracting 0 from 43.
Take the next digit (1) from the dividend and append it to 43, then repeat: 431 / 81

Advancing to step 3:
81 can be fit into 431 5 times, resulting in a remainder of 26.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 405 from 431 to get 26.
Take the next digit (6) from the dividend and append it to 26, then repeat: 266 / 81

Moving on to step 4:
266 divided by 81 is 3 with a remainder of 23.
Put 3 as the next digit of the answer. 
Result so far: 53.0
If we take 243 away from 266, we end up with 23.
Grab the next digit (3) from the dividend, add it to 23, then carry on: 233 / 81

On to step 5:
81 can be fit into 233 2 times, resulting in a remainder of 71.
The next digit of our result is 2. 
Result so far: 532.0
If we take 162 away from 233, we end up with 71.
Grab the next digit (3) from the dividend, add it to 71, then carry on: 713 / 81

Moving on to step 6:
If we divide 713 by 81, we get 8 and a remainder of 65.
Use 8 as the next digit of our solution. 
Result so far: 5328.0
Deduct 648 from 713 and we're left with 65.
Append the next digit (1) from the dividend to 65 and continue with: 651 / 81

On to step 7:
When dividing 651 by 81, we get 8 with a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 53288.0
Subtract 648 from 651 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 8:
If we divide 30 by 81, we get 0 and a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 53288.0
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 9:
If we divide 300 by 81, we get 3 and a remainder of 57.
Put 3 as the next digit of the answer. 
Result so far: 53288.03
The remainder is 57 after subtracting 243 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 10:
If we divide 570 by 81, we get 7 and a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 53288.037
Subtracting 567 from 570 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 11:
81 can be fit into 30 0 times, resulting in a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 53288.037
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 12:
300 divided by 81 is 3 with a remainder of 57.
The number 3 becomes the next digit in our result. 
Result so far: 53288.03703
Subtract 243 from 300 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Advancing to step 13:
If we divide 570 by 81, we get 7 and a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 53288.037037
The remainder is 3 after subtracting 567 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 14:
81 goes into 30 0 times with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 53288.037037
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 15:
81 goes into 300 3 times with a remainder of 57.
Record the quotient 3 as the next digit in the result. 
Result so far: 53288.03703703
The remainder is 57 after subtracting 243 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

The quotient of the division is 53288.03703703, and the remainder is 5.7e-08.