139634 ÷ 25 
The aim is to understand the frequency of 25 in 139634.

Going ahead to step 1:
If we divide 1 by 25, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 25

Moving on to step 2:
13 divided by 25 is 0 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.
Bring next digit (9) of the dividend behind the 13 and repeat the process: 139 / 25

On to step 3:
When dividing 139 by 25, we get 5 with a remainder of 14.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
The remainder is 14 after subtracting 125 from 139.
Grab the next digit (6) from the dividend, add it to 14, then carry on: 146 / 25

Let's proceed to step 4:
The number 25 fits into 146 5 times, leaving a remainder of 21.
The number 5 becomes the next digit in our result. 
Result so far: 55.0
If we take 125 away from 146, we end up with 21.
Grab the next digit (3) from the dividend, add it to 21, then carry on: 213 / 25

On to step 5:
When dividing 213 by 25, we get 8 with a remainder of 13.
Write down 8 as next digit of the result. 
Result so far: 558.0
Deduct 200 from 213 and we're left with 13.
Fetch the next digit (4) from the dividend, attach it to 13 and continue: 134 / 25

Going ahead to step 6:
When dividing 134 by 25, we get 5 with a remainder of 9.
Use 5 as the next digit of our solution. 
Result so far: 5585.0
Subtracting 125 from 134 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
25 can be fit into 90 3 times, resulting in a remainder of 15.
Put 3 as the next digit of the answer. 
Result so far: 5585.3
Subtracting 75 from 90 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 8:
150 divided by 25 is 6 with a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 5585.36
If we subtract 150 from 150, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
When dividing 0 by 25, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 5585.36
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
If we divide 0 by 25, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 5585.36
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 5585.36, with a leftover of 0.0.