We look at the division of 35027700 by 81 
The aim is to understand the frequency of 81 in 35027700.

Advancing to step 1:
If we divide 3 by 81, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 81

Let's proceed to step 2:
The number 81 fits into 35 0 times, leaving a remainder of 35.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 35 to get 35.
Bring next digit (0) of the dividend behind the 35 and repeat the process: 350 / 81

Step 3:
The number 81 fits into 350 4 times, leaving a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 324 from 350 to get 26.
Bring next digit (2) of the dividend behind the 26 and repeat the process: 262 / 81

Let's proceed to step 4:
81 can be fit into 262 3 times, resulting in a remainder of 19.
The next digit of our result is 3. 
Result so far: 43.0
If we subtract 243 from 262, we get 19.
Fetch the next digit (7) from the dividend, attach it to 19 and continue: 197 / 81

Advancing to step 5:
When dividing 197 by 81, we get 2 with a remainder of 35.
Write down 2 as next digit of the result. 
Result so far: 432.0
If we take 162 away from 197, we end up with 35.
Grab the next digit (7) from the dividend, add it to 35, then carry on: 357 / 81

Going ahead to step 6:
The number 81 fits into 357 4 times, leaving a remainder of 33.
Record the quotient 4 as the next digit in the result. 
Result so far: 4324.0
Subtracting 324 from 357 leaves us with 33.
Bring next digit (0) of the dividend behind the 33 and repeat the process: 330 / 81

Step 7:
If we divide 330 by 81, we get 4 and a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 43244.0
The remainder is 6 after subtracting 324 from 330.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 81

Moving on to step 8:
When dividing 60 by 81, we get 0 with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 432440.0
If we take 0 away from 60, we end up 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.

Advancing to step 9:
600 divided by 81 is 7 with a remainder of 33.
The next digit of our result is 7. 
Result so far: 432440.7
Subtracting 567 from 600 leaves us 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.

Moving on to step 10:
330 divided by 81 is 4 with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 432440.74
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.

On to step 11:
If we divide 60 by 81, we get 0 and a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 432440.74
Deduct 0 from 60 and we're left 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.

On to step 12:
The number 81 fits into 600 7 times, leaving a remainder of 33.
Write down 7 as next digit of the result. 
Result so far: 432440.7407
If we subtract 567 from 600, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 13:
If we divide 330 by 81, we get 4 and a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 432440.74074
Subtract 324 from 330 to 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.

Step 14:
The number 81 fits into 60 0 times, leaving a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 432440.74074
Deduct 0 from 60 and we're left 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.

Advancing to step 15:
81 goes into 600 7 times with a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 432440.7407407
The remainder is 33 after subtracting 567 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 16:
If we divide 330 by 81, we get 4 and a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 432440.74074074
If we take 324 away from 330, 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.

In conclusion, the division gives 432440.74074074 with a balance of 6e-09.