82572875 ÷ 425 
The aim is to understand the frequency of 425 in 82572875.

Let's proceed to step 1:
The number 425 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (2) from the dividend to 8 and continue with: 82 / 425

On to step 2:
When dividing 82 by 425, we get 0 with a remainder of 82.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 82, we end up with 82.
Grab the next digit (5) from the dividend, add it to 82, then carry on: 825 / 425

Let's proceed to step 3:
If we divide 825 by 425, we get 1 and a remainder of 400.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 425 from 825 to get 400.
Take the next digit (7) from the dividend and append it to 400, then repeat: 4007 / 425

Let's proceed to step 4:
If we divide 4007 by 425, we get 9 and a remainder of 182.
Use 9 as the next digit of our solution. 
Result so far: 19.0
If we subtract 3825 from 4007, we get 182.
Fetch the next digit (2) from the dividend, attach it to 182 and continue: 1822 / 425

On to step 5:
425 goes into 1822 4 times with a remainder of 122.
The number 4 becomes the next digit in our result. 
Result so far: 194.0
If we take 1700 away from 1822, we end up with 122.
Bring next digit (8) of the dividend behind the 122 and repeat the process: 1228 / 425

Step 6:
425 goes into 1228 2 times with a remainder of 378.
Record the quotient 2 as the next digit in the result. 
Result so far: 1942.0
Subtracting 850 from 1228 leaves us with 378.
Fetch the next digit (7) from the dividend, attach it to 378 and continue: 3787 / 425

Moving on to step 7:
When dividing 3787 by 425, we get 8 with a remainder of 387.
Write down 8 as next digit of the result. 
Result so far: 19428.0
Subtract 3400 from 3787 to get 387.
Append the next digit (5) from the dividend to 387 and continue with: 3875 / 425

Moving on to step 8:
425 goes into 3875 9 times with a remainder of 50.
The number 9 becomes the next digit in our result. 
Result so far: 194289.0
Subtract 3825 from 3875 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.

Moving on to step 9:
425 goes into 500 1 times with a remainder of 75.
Put 1 as the next digit of the answer. 
Result so far: 194289.1
Subtracting 425 from 500 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 10:
425 goes into 750 1 times with a remainder of 325.
The next digit of our result is 1. 
Result so far: 194289.11
If we subtract 425 from 750, we get 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

After the division, we end up with 194289.11 and a remainder of 0.325.