16347958 ÷ 125 
The aim is to understand the frequency of 125 in 16347958.

Going ahead to step 1:
The number 125 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 125

On to step 2:
125 goes into 16 0 times with a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 16 to get 16.
Append the next digit (3) from the dividend to 16 and continue with: 163 / 125

Advancing to step 3:
If we divide 163 by 125, we get 1 and a remainder of 38.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 38 after subtracting 125 from 163.
Include the next digit (4) from the dividend after 38, then repeat: 384 / 125

On to step 4:
The number 125 fits into 384 3 times, leaving a remainder of 9.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Subtract 375 from 384 to get 9.
Bring next digit (7) of the dividend behind the 9 and repeat the process: 97 / 125

Going ahead to step 5:
When dividing 97 by 125, we get 0 with a remainder of 97.
Record the quotient 0 as the next digit in the result. 
Result so far: 130.0
Deduct 0 from 97 and we're left with 97.
Bring next digit (9) of the dividend behind the 97 and repeat the process: 979 / 125

On to step 6:
If we divide 979 by 125, we get 7 and a remainder of 104.
Put 7 as the next digit of the answer. 
Result so far: 1307.0
Deduct 875 from 979 and we're left with 104.
Fetch the next digit (5) from the dividend, attach it to 104 and continue: 1045 / 125

Step 7:
The number 125 fits into 1045 8 times, leaving a remainder of 45.
The next digit of our result is 8. 
Result so far: 13078.0
If we take 1000 away from 1045, we end up with 45.
Append the next digit (8) from the dividend to 45 and continue with: 458 / 125

Step 8:
The number 125 fits into 458 3 times, leaving a remainder of 83.
Write down 3 as next digit of the result. 
Result so far: 130783.0
If we take 375 away from 458, we end up with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Advancing to step 9:
125 can be fit into 830 6 times, resulting in a remainder of 80.
The next digit of our result is 6. 
Result so far: 130783.6
If we take 750 away from 830, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 10:
If we divide 800 by 125, we get 6 and a remainder of 50.
Put 6 as the next digit of the answer. 
Result so far: 130783.66
Subtract 750 from 800 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

After the division, we end up with 130783.66 and a remainder of 0.05.