25698730 ÷ 121 
The aim is to understand the frequency of 121 in 25698730.

Moving on to step 1:
If we divide 2 by 121, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 121

On to step 2:
121 can be fit into 25 0 times, resulting in a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 25, we end up with 25.
Bring next digit (6) of the dividend behind the 25 and repeat the process: 256 / 121

Let's proceed to step 3:
256 divided by 121 is 2 with a remainder of 14.
The next digit of our result is 2. 
Result so far: 2.0
If we take 242 away from 256, we end up with 14.
Fetch the next digit (9) from the dividend, attach it to 14 and continue: 149 / 121

Moving on to step 4:
When dividing 149 by 121, we get 1 with a remainder of 28.
Write down 1 as next digit of the result. 
Result so far: 21.0
Subtract 121 from 149 to get 28.
Include the next digit (8) from the dividend after 28, then repeat: 288 / 121

Moving on to step 5:
The number 121 fits into 288 2 times, leaving a remainder of 46.
The number 2 becomes the next digit in our result. 
Result so far: 212.0
Subtracting 242 from 288 leaves us with 46.
Include the next digit (7) from the dividend after 46, then repeat: 467 / 121

Step 6:
If we divide 467 by 121, we get 3 and a remainder of 104.
Put 3 as the next digit of the answer. 
Result so far: 2123.0
If we take 363 away from 467, we end up with 104.
Append the next digit (3) from the dividend to 104 and continue with: 1043 / 121

Moving on to step 7:
If we divide 1043 by 121, we get 8 and a remainder of 75.
Record the quotient 8 as the next digit in the result. 
Result so far: 21238.0
Subtract 968 from 1043 to get 75.
Fetch the next digit (0) from the dividend, attach it to 75 and continue: 750 / 121

Step 8:
750 divided by 121 is 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 212386.0
Subtract 726 from 750 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 9:
When dividing 240 by 121, we get 1 with a remainder of 119.
Use 1 as the next digit of our solution. 
Result so far: 212386.1
If we take 121 away from 240, we end up with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

On to step 10:
When dividing 1190 by 121, we get 9 with a remainder of 101.
The next digit of our result is 9. 
Result so far: 212386.19
The remainder is 101 after subtracting 1089 from 1190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

On to step 11:
1010 divided by 121 is 8 with a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 212386.198
If we take 968 away from 1010, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 12:
121 can be fit into 420 3 times, resulting in a remainder of 57.
The number 3 becomes the next digit in our result. 
Result so far: 212386.1983
If we take 363 away from 420, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 13:
When dividing 570 by 121, we get 4 with a remainder of 86.
The next digit of our result is 4. 
Result so far: 212386.19834
The remainder is 86 after subtracting 484 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

On to step 14:
The number 121 fits into 860 7 times, leaving a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 212386.198347
Subtract 847 from 860 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 15:
If we divide 130 by 121, we get 1 and a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 212386.1983471
The remainder is 9 after subtracting 121 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 16:
121 can be fit into 90 0 times, resulting in a remainder of 90.
The next digit of our result is 0. 
Result so far: 212386.1983471
Deduct 0 from 90 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

In conclusion, the division gives 212386.1983471 with a balance of 9e-08.