We're dividing 258207 by 10 
The aim is to understand the frequency of 10 in 258207.

On to step 1:
10 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 10

On to step 2:
The number 10 fits into 25 2 times, leaving a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 20 from 25 to get 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 10

Advancing to step 3:
10 can be fit into 58 5 times, resulting in a remainder of 8.
Write down 5 as next digit of the result. 
Result so far: 25.0
Deduct 50 from 58 and we're left with 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 10

Let's proceed to step 4:
If we divide 82 by 10, we get 8 and a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 258.0
If we take 80 away from 82, we end up with 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 10

Going ahead to step 5:
When dividing 20 by 10, we get 2 with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 2582.0
The remainder is 0 after subtracting 20 from 20.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 10

Going ahead to step 6:
The number 10 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 25820.0
Subtract 0 from 7 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 7:
When dividing 70 by 10, we get 7 with a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 25820.7
If we take 70 away from 70, we end up 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.

On to step 8:
The number 10 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 25820.7
If we take 0 away from 0, we end up 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.

On to step 9:
The number 10 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 25820.7
Deduct 0 from 0 and we're left 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 result is 25820.7 with a remainder of 0.0.