We're dividing 35363775 by 858 
The aim is to understand the frequency of 858 in 35363775.

On to step 1:
When dividing 3 by 858, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 858

Step 2:
858 goes into 35 0 times with a remainder of 35.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 35, we get 35.
Grab the next digit (3) from the dividend, add it to 35, then carry on: 353 / 858

Going ahead to step 3:
353 divided by 858 is 0 with a remainder of 353.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 353 to get 353.
Take the next digit (6) from the dividend and append it to 353, then repeat: 3536 / 858

On to step 4:
858 goes into 3536 4 times with a remainder of 104.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we subtract 3432 from 3536, we get 104.
Bring next digit (3) of the dividend behind the 104 and repeat the process: 1043 / 858

Moving on to step 5:
858 can be fit into 1043 1 times, resulting in a remainder of 185.
Record the quotient 1 as the next digit in the result. 
Result so far: 41.0
Deduct 858 from 1043 and we're left with 185.
Include the next digit (7) from the dividend after 185, then repeat: 1857 / 858

Moving on to step 6:
858 can be fit into 1857 2 times, resulting in a remainder of 141.
The next digit of our result is 2. 
Result so far: 412.0
Subtracting 1716 from 1857 leaves us with 141.
Fetch the next digit (7) from the dividend, attach it to 141 and continue: 1417 / 858

Moving on to step 7:
858 goes into 1417 1 times with a remainder of 559.
Use 1 as the next digit of our solution. 
Result so far: 4121.0
If we take 858 away from 1417, we end up with 559.
Fetch the next digit (5) from the dividend, attach it to 559 and continue: 5595 / 858

Going ahead to step 8:
5595 divided by 858 is 6 with a remainder of 447.
Use 6 as the next digit of our solution. 
Result so far: 41216.0
Subtract 5148 from 5595 to get 447.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4470, and continue the process.

Step 9:
4470 divided by 858 is 5 with a remainder of 180.
Put 5 as the next digit of the answer. 
Result so far: 41216.5
Deduct 4290 from 4470 and we're left with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 10:
The number 858 fits into 1800 2 times, leaving a remainder of 84.
Put 2 as the next digit of the answer. 
Result so far: 41216.52
Subtracting 1716 from 1800 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 11:
If we divide 840 by 858, we get 0 and a remainder of 840.
Use 0 as the next digit of our solution. 
Result so far: 41216.52
If we take 0 away from 840, we end up with 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

Step 12:
If we divide 8400 by 858, we get 9 and a remainder of 678.
The number 9 becomes the next digit in our result. 
Result so far: 41216.5209
If we subtract 7722 from 8400, we get 678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6780, and continue the process.

Moving on to step 13:
858 goes into 6780 7 times with a remainder of 774.
The next digit of our result is 7. 
Result so far: 41216.52097
If we subtract 6006 from 6780, we get 774.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7740, and continue the process.

Going ahead to step 14:
858 can be fit into 7740 9 times, resulting in a remainder of 18.
Record the quotient 9 as the next digit in the result. 
Result so far: 41216.520979
The remainder is 18 after subtracting 7722 from 7740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 15:
858 can be fit into 180 0 times, resulting in a remainder of 180.
Record the quotient 0 as the next digit in the result. 
Result so far: 41216.520979
If we subtract 0 from 180, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Moving on to step 16:
The number 858 fits into 1800 2 times, leaving a remainder of 84.
The next digit of our result is 2. 
Result so far: 41216.52097902
If we take 1716 away from 1800, we end up with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

After the division, we end up with 41216.52097902 and a remainder of 8.4e-08.