25806464 ÷ 425 
The aim is to understand the frequency of 425 in 25806464.

Going ahead to step 1:
The number 425 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 425

Advancing to step 2:
When dividing 25 by 425, we get 0 with a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 25, we end up with 25.
Include the next digit (8) from the dividend after 25, then repeat: 258 / 425

Step 3:
When dividing 258 by 425, we get 0 with a remainder of 258.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 258, we get 258.
Take the next digit (0) from the dividend and append it to 258, then repeat: 2580 / 425

Let's proceed to step 4:
The number 425 fits into 2580 6 times, leaving a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 2550 from 2580 and we're left with 30.
Grab the next digit (6) from the dividend, add it to 30, then carry on: 306 / 425

Advancing to step 5:
425 goes into 306 0 times with a remainder of 306.
The number 0 becomes the next digit in our result. 
Result so far: 60.0
If we subtract 0 from 306, we get 306.
Bring next digit (4) of the dividend behind the 306 and repeat the process: 3064 / 425

Step 6:
425 goes into 3064 7 times with a remainder of 89.
The number 7 becomes the next digit in our result. 
Result so far: 607.0
If we take 2975 away from 3064, we end up with 89.
Bring next digit (6) of the dividend behind the 89 and repeat the process: 896 / 425

Going ahead to step 7:
If we divide 896 by 425, we get 2 and a remainder of 46.
The next digit of our result is 2. 
Result so far: 6072.0
If we subtract 850 from 896, we get 46.
Grab the next digit (4) from the dividend, add it to 46, then carry on: 464 / 425

Advancing to step 8:
When dividing 464 by 425, we get 1 with a remainder of 39.
Write down 1 as next digit of the result. 
Result so far: 60721.0
Deduct 425 from 464 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 9:
The number 425 fits into 390 0 times, leaving a remainder of 390.
The number 0 becomes the next digit in our result. 
Result so far: 60721.0
Subtract 0 from 390 to get 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

On to step 10:
425 can be fit into 3900 9 times, resulting in a remainder of 75.
Put 9 as the next digit of the answer. 
Result so far: 60721.09
Deduct 3825 from 3900 and we're left 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.

Advancing to step 11:
425 goes into 750 1 times with a remainder of 325.
Use 1 as the next digit of our solution. 
Result so far: 60721.091
If we take 425 away from 750, we end up with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

On to step 12:
425 goes into 3250 7 times with a remainder of 275.
Put 7 as the next digit of the answer. 
Result so far: 60721.0917
If we take 2975 away from 3250, we end up with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Going ahead to step 13:
When dividing 2750 by 425, we get 6 with a remainder of 200.
Put 6 as the next digit of the answer. 
Result so far: 60721.09176
The remainder is 200 after subtracting 2550 from 2750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 14:
425 can be fit into 2000 4 times, resulting in a remainder of 300.
The next digit of our result is 4. 
Result so far: 60721.091764
If we take 1700 away from 2000, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 15:
If we divide 3000 by 425, we get 7 and a remainder of 25.
Use 7 as the next digit of our solution. 
Result so far: 60721.0917647
If we subtract 2975 from 3000, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 16:
250 divided by 425 is 0 with a remainder of 250.
The number 0 becomes the next digit in our result. 
Result so far: 60721.0917647
Deduct 0 from 250 and we're left with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

After the division, we end up with 60721.0917647 and a remainder of 2.5e-07.