We look at the division of 4091868 by 338 
The aim is to understand the frequency of 338 in 4091868.

Step 1:
The number 338 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 338

On to step 2:
338 goes into 40 0 times with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Include the next digit (9) from the dividend after 40, then repeat: 409 / 338

Going ahead to step 3:
338 can be fit into 409 1 times, resulting in a remainder of 71.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 338 away from 409, we end up with 71.
Fetch the next digit (1) from the dividend, attach it to 71 and continue: 711 / 338

Moving on to step 4:
711 divided by 338 is 2 with a remainder of 35.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 676 from 711 and we're left with 35.
Append the next digit (8) from the dividend to 35 and continue with: 358 / 338

Advancing to step 5:
358 divided by 338 is 1 with a remainder of 20.
Write down 1 as next digit of the result. 
Result so far: 121.0
The remainder is 20 after subtracting 338 from 358.
Grab the next digit (6) from the dividend, add it to 20, then carry on: 206 / 338

Advancing to step 6:
338 goes into 206 0 times with a remainder of 206.
Write down 0 as next digit of the result. 
Result so far: 1210.0
The remainder is 206 after subtracting 0 from 206.
Append the next digit (8) from the dividend to 206 and continue with: 2068 / 338

On to step 7:
2068 divided by 338 is 6 with a remainder of 40.
Use 6 as the next digit of our solution. 
Result so far: 12106.0
Deduct 2028 from 2068 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 8:
The number 338 fits into 400 1 times, leaving a remainder of 62.
The next digit of our result is 1. 
Result so far: 12106.1
Deduct 338 from 400 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 9:
The number 338 fits into 620 1 times, leaving a remainder of 282.
Use 1 as the next digit of our solution. 
Result so far: 12106.11
Subtracting 338 from 620 leaves us with 282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

Our division results in 12106.11 with a remaining 0.282.