Let's divide 353838 by 81
The aim is to understand the frequency of 81 in 353838.

Let's proceed to step 1:
If we divide 3 by 81, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 81

Let's proceed to step 2:
35 divided by 81 is 0 with a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 35 and we're left with 35.
Include the next digit (3) from the dividend after 35, then repeat: 353 / 81

Let's proceed to step 3:
The number 81 fits into 353 4 times, leaving a remainder of 29.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 324 from 353 to get 29.
Include the next digit (8) from the dividend after 29, then repeat: 298 / 81

Advancing to step 4:
When dividing 298 by 81, we get 3 with a remainder of 55.
Write down 3 as next digit of the result. 
Result so far: 43.0
If we take 243 away from 298, we end up with 55.
Fetch the next digit (3) from the dividend, attach it to 55 and continue: 553 / 81

Step 5:
553 divided by 81 is 6 with a remainder of 67.
The number 6 becomes the next digit in our result. 
Result so far: 436.0
Subtract 486 from 553 to get 67.
Include the next digit (8) from the dividend after 67, then repeat: 678 / 81

Advancing to step 6:
If we divide 678 by 81, we get 8 and a remainder of 30.
The next digit of our result is 8. 
Result so far: 4368.0
Deduct 648 from 678 and we're left 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 7:
When dividing 300 by 81, we get 3 with a remainder of 57.
Write down 3 as next digit of the result. 
Result so far: 4368.3
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.

Moving on to step 8:
81 can be fit into 570 7 times, resulting in a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 4368.37
Deduct 567 from 570 and we're left 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.

On to step 9:
81 goes into 30 0 times with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 4368.37
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 10:
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: 4368.3703
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.

Moving on to step 11:
When dividing 570 by 81, we get 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 4368.37037
Deduct 567 from 570 and we're left 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.

Advancing to step 12:
When dividing 30 by 81, we get 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 4368.37037
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.

On to step 13:
The number 81 fits into 300 3 times, leaving a remainder of 57.
Put 3 as the next digit of the answer. 
Result so far: 4368.3703703
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.

Let's proceed to step 14:
81 can be fit into 570 7 times, resulting in a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 4368.37037037
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.

The quotient of the division is 4368.37037037, and the remainder is 3e-09.