We look at the division of 137846 by 325 
The aim is to understand the frequency of 325 in 137846.

On to step 1:
If we divide 1 by 325, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 325

Moving on to step 2:
325 goes into 13 0 times with a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Include the next digit (7) from the dividend after 13, then repeat: 137 / 325

On to step 3:
325 can be fit into 137 0 times, resulting in a remainder of 137.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 137 after subtracting 0 from 137.
Grab the next digit (8) from the dividend, add it to 137, then carry on: 1378 / 325

Going ahead to step 4:
325 goes into 1378 4 times with a remainder of 78.
The next digit of our result is 4. 
Result so far: 4.0
The remainder is 78 after subtracting 1300 from 1378.
Grab the next digit (4) from the dividend, add it to 78, then carry on: 784 / 325

On to step 5:
If we divide 784 by 325, we get 2 and a remainder of 134.
Record the quotient 2 as the next digit in the result. 
Result so far: 42.0
The remainder is 134 after subtracting 650 from 784.
Append the next digit (6) from the dividend to 134 and continue with: 1346 / 325

Moving on to step 6:
325 can be fit into 1346 4 times, resulting in a remainder of 46.
Use 4 as the next digit of our solution. 
Result so far: 424.0
Subtract 1300 from 1346 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 7:
325 can be fit into 460 1 times, resulting in a remainder of 135.
The number 1 becomes the next digit in our result. 
Result so far: 424.1
The remainder is 135 after subtracting 325 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Advancing to step 8:
The number 325 fits into 1350 4 times, leaving a remainder of 50.
Use 4 as the next digit of our solution. 
Result so far: 424.14
The remainder is 50 after subtracting 1300 from 1350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
325 goes into 500 1 times with a remainder of 175.
Use 1 as the next digit of our solution. 
Result so far: 424.141
Subtract 325 from 500 to 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.

Let's proceed to step 10:
If we divide 1750 by 325, we get 5 and a remainder of 125.
Write down 5 as next digit of the result. 
Result so far: 424.1415
Subtracting 1625 from 1750 leaves us with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Moving on to step 11:
The number 325 fits into 1250 3 times, leaving a remainder of 275.
The number 3 becomes the next digit in our result. 
Result so far: 424.14153
If we take 975 away from 1250, we end up with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

On to step 12:
325 can be fit into 2750 8 times, resulting in a remainder of 150.
The next digit of our result is 8. 
Result so far: 424.141538
If we take 2600 away from 2750, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 13:
When dividing 1500 by 325, we get 4 with a remainder of 200.
The next digit of our result is 4. 
Result so far: 424.1415384
Deduct 1300 from 1500 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 14:
If we divide 2000 by 325, we get 6 and a remainder of 50.
The number 6 becomes the next digit in our result. 
Result so far: 424.14153846
Subtracting 1950 from 2000 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Our division results in 424.14153846 with a remaining 5e-08.