25210426 ÷ 320 
The aim is to understand the frequency of 320 in 25210426.

Let's proceed to step 1:
320 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 320

Advancing to step 2:
320 goes into 25 0 times with a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 25 leaves us with 25.
Include the next digit (2) from the dividend after 25, then repeat: 252 / 320

Moving on to step 3:
320 can be fit into 252 0 times, resulting in a remainder of 252.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 252 to get 252.
Grab the next digit (1) from the dividend, add it to 252, then carry on: 2521 / 320

Step 4:
2521 divided by 320 is 7 with a remainder of 281.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 2240 from 2521 to get 281.
Include the next digit (0) from the dividend after 281, then repeat: 2810 / 320

Going ahead to step 5:
When dividing 2810 by 320, we get 8 with a remainder of 250.
Write down 8 as next digit of the result. 
Result so far: 78.0
If we take 2560 away from 2810, we end up with 250.
Bring next digit (4) of the dividend behind the 250 and repeat the process: 2504 / 320

Let's proceed to step 6:
If we divide 2504 by 320, we get 7 and a remainder of 264.
Record the quotient 7 as the next digit in the result. 
Result so far: 787.0
Subtracting 2240 from 2504 leaves us with 264.
Grab the next digit (2) from the dividend, add it to 264, then carry on: 2642 / 320

Moving on to step 7:
The number 320 fits into 2642 8 times, leaving a remainder of 82.
The number 8 becomes the next digit in our result. 
Result so far: 7878.0
If we take 2560 away from 2642, we end up with 82.
Take the next digit (6) from the dividend and append it to 82, then repeat: 826 / 320

On to step 8:
320 can be fit into 826 2 times, resulting in a remainder of 186.
Record the quotient 2 as the next digit in the result. 
Result so far: 78782.0
Deduct 640 from 826 and we're left with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Step 9:
320 can be fit into 1860 5 times, resulting in a remainder of 260.
The next digit of our result is 5. 
Result so far: 78782.5
If we subtract 1600 from 1860, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 10:
The number 320 fits into 2600 8 times, leaving a remainder of 40.
Record the quotient 8 as the next digit in the result. 
Result so far: 78782.58
If we subtract 2560 from 2600, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 11:
320 can be fit into 400 1 times, resulting in a remainder of 80.
Put 1 as the next digit of the answer. 
Result so far: 78782.581
Subtract 320 from 400 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 12:
The number 320 fits into 800 2 times, leaving a remainder of 160.
Record the quotient 2 as the next digit in the result. 
Result so far: 78782.5812
Subtracting 640 from 800 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 13:
320 can be fit into 1600 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 78782.58125
Deduct 1600 from 1600 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.

Moving on to step 14:
0 divided by 320 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 78782.58125
The remainder is 0 after subtracting 0 from 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 15:
320 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 78782.58125
If we subtract 0 from 0, 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.

Our division results in 78782.58125 with a remaining 0.0.