We look at the division of 25132887 by 902 
The aim is to understand the frequency of 902 in 25132887.

Going ahead to step 1:
902 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 902

On to step 2:
The number 902 fits into 25 0 times, leaving a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 25, we get 25.
Fetch the next digit (1) from the dividend, attach it to 25 and continue: 251 / 902

On to step 3:
902 goes into 251 0 times with a remainder of 251.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 251 leaves us with 251.
Fetch the next digit (3) from the dividend, attach it to 251 and continue: 2513 / 902

Let's proceed to step 4:
If we divide 2513 by 902, we get 2 and a remainder of 709.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 1804 from 2513 and we're left with 709.
Grab the next digit (2) from the dividend, add it to 709, then carry on: 7092 / 902

Advancing to step 5:
The number 902 fits into 7092 7 times, leaving a remainder of 778.
Use 7 as the next digit of our solution. 
Result so far: 27.0
Deduct 6314 from 7092 and we're left with 778.
Include the next digit (8) from the dividend after 778, then repeat: 7788 / 902

Let's proceed to step 6:
The number 902 fits into 7788 8 times, leaving a remainder of 572.
Use 8 as the next digit of our solution. 
Result so far: 278.0
Subtract 7216 from 7788 to get 572.
Fetch the next digit (8) from the dividend, attach it to 572 and continue: 5728 / 902

Let's proceed to step 7:
If we divide 5728 by 902, we get 6 and a remainder of 316.
The next digit of our result is 6. 
Result so far: 2786.0
Subtracting 5412 from 5728 leaves us with 316.
Bring next digit (7) of the dividend behind the 316 and repeat the process: 3167 / 902

On to step 8:
3167 divided by 902 is 3 with a remainder of 461.
The next digit of our result is 3. 
Result so far: 27863.0
Subtract 2706 from 3167 to get 461.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4610, and continue the process.

Advancing to step 9:
When dividing 4610 by 902, we get 5 with a remainder of 100.
Record the quotient 5 as the next digit in the result. 
Result so far: 27863.5
The remainder is 100 after subtracting 4510 from 4610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 10:
1000 divided by 902 is 1 with a remainder of 98.
Use 1 as the next digit of our solution. 
Result so far: 27863.51
Subtracting 902 from 1000 leaves us with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Going ahead to step 11:
When dividing 980 by 902, we get 1 with a remainder of 78.
Put 1 as the next digit of the answer. 
Result so far: 27863.511
If we take 902 away from 980, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Our division results in 27863.511 with a remaining 0.0078.