25535279 ÷ 901 
The aim is to understand the frequency of 901 in 25535279.

Step 1:
When dividing 2 by 901, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 901

Advancing to step 2:
901 goes into 25 0 times with a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Grab the next digit (5) from the dividend, add it to 25, then carry on: 255 / 901

Advancing to step 3:
When dividing 255 by 901, we get 0 with a remainder of 255.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 255, we get 255.
Take the next digit (3) from the dividend and append it to 255, then repeat: 2553 / 901

On to step 4:
When dividing 2553 by 901, we get 2 with a remainder of 751.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 751 after subtracting 1802 from 2553.
Grab the next digit (5) from the dividend, add it to 751, then carry on: 7515 / 901

Going ahead to step 5:
When dividing 7515 by 901, we get 8 with a remainder of 307.
The next digit of our result is 8. 
Result so far: 28.0
Subtracting 7208 from 7515 leaves us with 307.
Take the next digit (2) from the dividend and append it to 307, then repeat: 3072 / 901

On to step 6:
When dividing 3072 by 901, we get 3 with a remainder of 369.
Record the quotient 3 as the next digit in the result. 
Result so far: 283.0
Subtract 2703 from 3072 to get 369.
Include the next digit (7) from the dividend after 369, then repeat: 3697 / 901

Advancing to step 7:
If we divide 3697 by 901, we get 4 and a remainder of 93.
Use 4 as the next digit of our solution. 
Result so far: 2834.0
If we take 3604 away from 3697, we end up with 93.
Include the next digit (9) from the dividend after 93, then repeat: 939 / 901

Moving on to step 8:
901 goes into 939 1 times with a remainder of 38.
Write down 1 as next digit of the result. 
Result so far: 28341.0
Subtract 901 from 939 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 9:
If we divide 380 by 901, we get 0 and a remainder of 380.
Use 0 as the next digit of our solution. 
Result so far: 28341.0
If we take 0 away from 380, we end up with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 10:
901 goes into 3800 4 times with a remainder of 196.
Put 4 as the next digit of the answer. 
Result so far: 28341.04
If we subtract 3604 from 3800, we get 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Advancing to step 11:
901 can be fit into 1960 2 times, resulting in a remainder of 158.
Record the quotient 2 as the next digit in the result. 
Result so far: 28341.042
Deduct 1802 from 1960 and we're left with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Moving on to step 12:
901 goes into 1580 1 times with a remainder of 679.
Write down 1 as next digit of the result. 
Result so far: 28341.0421
Subtract 901 from 1580 to get 679.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6790, and continue the process.

Let's proceed to step 13:
6790 divided by 901 is 7 with a remainder of 483.
Record the quotient 7 as the next digit in the result. 
Result so far: 28341.04217
If we subtract 6307 from 6790, we get 483.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4830, and continue the process.

Moving on to step 14:
The number 901 fits into 4830 5 times, leaving a remainder of 325.
The next digit of our result is 5. 
Result so far: 28341.042175
The remainder is 325 after subtracting 4505 from 4830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Going ahead to step 15:
If we divide 3250 by 901, we get 3 and a remainder of 547.
The next digit of our result is 3. 
Result so far: 28341.0421753
The remainder is 547 after subtracting 2703 from 3250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5470, and continue the process.

On to step 16:
901 can be fit into 5470 6 times, resulting in a remainder of 64.
Put 6 as the next digit of the answer. 
Result so far: 28341.04217536
Subtracting 5406 from 5470 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

After the division, we end up with 28341.04217536 and a remainder of 6.4e-08.