Let's divide 55438842 by 813
The aim is to understand the frequency of 813 in 55438842.

Moving on to step 1:
The number 813 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 813

Step 2:
813 can be fit into 55 0 times, resulting in a remainder of 55.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 55 after subtracting 0 from 55.
Include the next digit (4) from the dividend after 55, then repeat: 554 / 813

On to step 3:
813 goes into 554 0 times with a remainder of 554.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 554, we get 554.
Grab the next digit (3) from the dividend, add it to 554, then carry on: 5543 / 813

On to step 4:
If we divide 5543 by 813, we get 6 and a remainder of 665.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 665 after subtracting 4878 from 5543.
Bring next digit (8) of the dividend behind the 665 and repeat the process: 6658 / 813

Let's proceed to step 5:
6658 divided by 813 is 8 with a remainder of 154.
Record the quotient 8 as the next digit in the result. 
Result so far: 68.0
Deduct 6504 from 6658 and we're left with 154.
Append the next digit (8) from the dividend to 154 and continue with: 1548 / 813

Let's proceed to step 6:
813 can be fit into 1548 1 times, resulting in a remainder of 735.
The number 1 becomes the next digit in our result. 
Result so far: 681.0
Deduct 813 from 1548 and we're left with 735.
Grab the next digit (4) from the dividend, add it to 735, then carry on: 7354 / 813

Advancing to step 7:
813 can be fit into 7354 9 times, resulting in a remainder of 37.
Use 9 as the next digit of our solution. 
Result so far: 6819.0
If we take 7317 away from 7354, we end up with 37.
Fetch the next digit (2) from the dividend, attach it to 37 and continue: 372 / 813

Advancing to step 8:
813 goes into 372 0 times with a remainder of 372.
The next digit of our result is 0. 
Result so far: 68190.0
Subtract 0 from 372 to get 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Advancing to step 9:
813 can be fit into 3720 4 times, resulting in a remainder of 468.
Use 4 as the next digit of our solution. 
Result so far: 68190.4
Subtract 3252 from 3720 to get 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

On to step 10:
813 can be fit into 4680 5 times, resulting in a remainder of 615.
Write down 5 as next digit of the result. 
Result so far: 68190.45
Deduct 4065 from 4680 and we're left with 615.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6150, and continue the process.

Advancing to step 11:
The number 813 fits into 6150 7 times, leaving a remainder of 459.
Use 7 as the next digit of our solution. 
Result so far: 68190.457
If we take 5691 away from 6150, we end up with 459.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4590, and continue the process.

Advancing to step 12:
The number 813 fits into 4590 5 times, leaving a remainder of 525.
The next digit of our result is 5. 
Result so far: 68190.4575
Subtracting 4065 from 4590 leaves us with 525.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

Step 13:
5250 divided by 813 is 6 with a remainder of 372.
Record the quotient 6 as the next digit in the result. 
Result so far: 68190.45756
Deduct 4878 from 5250 and we're left with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Advancing to step 14:
The number 813 fits into 3720 4 times, leaving a remainder of 468.
The next digit of our result is 4. 
Result so far: 68190.457564
Deduct 3252 from 3720 and we're left with 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Moving on to step 15:
The number 813 fits into 4680 5 times, leaving a remainder of 615.
Put 5 as the next digit of the answer. 
Result so far: 68190.4575645
Subtract 4065 from 4680 to get 615.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6150, and continue the process.

Going ahead to step 16:
813 goes into 6150 7 times with a remainder of 459.
Put 7 as the next digit of the answer. 
Result so far: 68190.45756457
If we take 5691 away from 6150, we end up with 459.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4590, and continue the process.

The final outcome is 68190.45756457, with a leftover of 4.59e-07.