700383 ÷ 81 
The aim is to understand the frequency of 81 in 700383.

Advancing to step 1:
If we divide 7 by 81, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 81

Advancing to step 2:
81 goes into 70 0 times with a remainder of 70.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 70 and we're left with 70.
Bring next digit (0) of the dividend behind the 70 and repeat the process: 700 / 81

Let's proceed to step 3:
81 can be fit into 700 8 times, resulting in a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 648 from 700, we get 52.
Take the next digit (3) from the dividend and append it to 52, then repeat: 523 / 81

Moving on to step 4:
523 divided by 81 is 6 with a remainder of 37.
Put 6 as the next digit of the answer. 
Result so far: 86.0
If we subtract 486 from 523, we get 37.
Take the next digit (8) from the dividend and append it to 37, then repeat: 378 / 81

Step 5:
If we divide 378 by 81, we get 4 and a remainder of 54.
Write down 4 as next digit of the result. 
Result so far: 864.0
Subtract 324 from 378 to get 54.
Fetch the next digit (3) from the dividend, attach it to 54 and continue: 543 / 81

Going ahead to step 6:
When dividing 543 by 81, we get 6 with a remainder of 57.
Record the quotient 6 as the next digit in the result. 
Result so far: 8646.0
The remainder is 57 after subtracting 486 from 543.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 7:
The number 81 fits into 570 7 times, leaving a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 8646.7
Subtract 567 from 570 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.

On to step 8:
81 goes into 30 0 times with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 8646.7
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 9:
When dividing 300 by 81, we get 3 with a remainder of 57.
The number 3 becomes the next digit in our result. 
Result so far: 8646.703
If we take 243 away from 300, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 10:
81 can be fit into 570 7 times, resulting in a remainder of 3.
The next digit of our result is 7. 
Result so far: 8646.7037
Subtract 567 from 570 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.

Going ahead to step 11:
81 goes into 30 0 times with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 8646.7037
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 12:
81 goes into 300 3 times with a remainder of 57.
The next digit of our result is 3. 
Result so far: 8646.703703
Deduct 243 from 300 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 13:
The number 81 fits into 570 7 times, leaving a remainder of 3.
The next digit of our result is 7. 
Result so far: 8646.7037037
If we take 567 away from 570, we end up 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.

Moving on to step 14:
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: 8646.7037037
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final outcome is 8646.7037037, with a leftover of 3e-08.