We look at the division of 7355741 by 839 
The aim is to understand the frequency of 839 in 7355741.

Let's proceed to step 1:
If we divide 7 by 839, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 839

Step 2:
839 goes into 73 0 times with a remainder of 73.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 73 to get 73.
Grab the next digit (5) from the dividend, add it to 73, then carry on: 735 / 839

Step 3:
735 divided by 839 is 0 with a remainder of 735.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 735, we get 735.
Take the next digit (5) from the dividend and append it to 735, then repeat: 7355 / 839

Let's proceed to step 4:
839 goes into 7355 8 times with a remainder of 643.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 6712 from 7355, we get 643.
Include the next digit (7) from the dividend after 643, then repeat: 6437 / 839

Going ahead to step 5:
If we divide 6437 by 839, we get 7 and a remainder of 564.
Use 7 as the next digit of our solution. 
Result so far: 87.0
The remainder is 564 after subtracting 5873 from 6437.
Include the next digit (4) from the dividend after 564, then repeat: 5644 / 839

On to step 6:
839 can be fit into 5644 6 times, resulting in a remainder of 610.
The next digit of our result is 6. 
Result so far: 876.0
The remainder is 610 after subtracting 5034 from 5644.
Fetch the next digit (1) from the dividend, attach it to 610 and continue: 6101 / 839

Moving on to step 7:
839 goes into 6101 7 times with a remainder of 228.
The next digit of our result is 7. 
Result so far: 8767.0
Subtract 5873 from 6101 to get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

On to step 8:
839 goes into 2280 2 times with a remainder of 602.
The number 2 becomes the next digit in our result. 
Result so far: 8767.2
The remainder is 602 after subtracting 1678 from 2280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Moving on to step 9:
The number 839 fits into 6020 7 times, leaving a remainder of 147.
The number 7 becomes the next digit in our result. 
Result so far: 8767.27
Deduct 5873 from 6020 and we're left with 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Let's proceed to step 10:
When dividing 1470 by 839, we get 1 with a remainder of 631.
The next digit of our result is 1. 
Result so far: 8767.271
If we subtract 839 from 1470, we get 631.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6310, and continue the process.

Advancing to step 11:
The number 839 fits into 6310 7 times, leaving a remainder of 437.
The next digit of our result is 7. 
Result so far: 8767.2717
Subtracting 5873 from 6310 leaves us with 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Moving on to step 12:
The number 839 fits into 4370 5 times, leaving a remainder of 175.
Record the quotient 5 as the next digit in the result. 
Result so far: 8767.27175
If we subtract 4195 from 4370, we get 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Advancing to step 13:
When dividing 1750 by 839, we get 2 with a remainder of 72.
Write down 2 as next digit of the result. 
Result so far: 8767.271752
Deduct 1678 from 1750 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 14:
720 divided by 839 is 0 with a remainder of 720.
Put 0 as the next digit of the answer. 
Result so far: 8767.271752
Subtract 0 from 720 to get 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Moving on to step 15:
839 goes into 7200 8 times with a remainder of 488.
The number 8 becomes the next digit in our result. 
Result so far: 8767.27175208
Subtract 6712 from 7200 to get 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

The final outcome is 8767.27175208, with a leftover of 4.88e-07.