We're dividing 25124351 by 707 
The aim is to understand the frequency of 707 in 25124351.

Advancing to step 1:
707 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
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 / 707

Step 2:
The number 707 fits into 25 0 times, leaving a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Take the next digit (1) from the dividend and append it to 25, then repeat: 251 / 707

Going ahead to step 3:
The number 707 fits into 251 0 times, leaving a remainder of 251.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 251 leaves us with 251.
Bring next digit (2) of the dividend behind the 251 and repeat the process: 2512 / 707

Advancing to step 4:
2512 divided by 707 is 3 with a remainder of 391.
The next digit of our result is 3. 
Result so far: 3.0
If we take 2121 away from 2512, we end up with 391.
Grab the next digit (4) from the dividend, add it to 391, then carry on: 3914 / 707

Going ahead to step 5:
When dividing 3914 by 707, we get 5 with a remainder of 379.
Put 5 as the next digit of the answer. 
Result so far: 35.0
Subtracting 3535 from 3914 leaves us with 379.
Take the next digit (3) from the dividend and append it to 379, then repeat: 3793 / 707

Advancing to step 6:
When dividing 3793 by 707, we get 5 with a remainder of 258.
Record the quotient 5 as the next digit in the result. 
Result so far: 355.0
If we subtract 3535 from 3793, we get 258.
Take the next digit (5) from the dividend and append it to 258, then repeat: 2585 / 707

Step 7:
707 goes into 2585 3 times with a remainder of 464.
Write down 3 as next digit of the result. 
Result so far: 3553.0
Subtracting 2121 from 2585 leaves us with 464.
Bring next digit (1) of the dividend behind the 464 and repeat the process: 4641 / 707

On to step 8:
When dividing 4641 by 707, we get 6 with a remainder of 399.
Put 6 as the next digit of the answer. 
Result so far: 35536.0
Subtracting 4242 from 4641 leaves us with 399.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3990, and continue the process.

Advancing to step 9:
The number 707 fits into 3990 5 times, leaving a remainder of 455.
Record the quotient 5 as the next digit in the result. 
Result so far: 35536.5
The remainder is 455 after subtracting 3535 from 3990.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Advancing to step 10:
The number 707 fits into 4550 6 times, leaving a remainder of 308.
Put 6 as the next digit of the answer. 
Result so far: 35536.56
If we subtract 4242 from 4550, we get 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Going ahead to step 11:
When dividing 3080 by 707, we get 4 with a remainder of 252.
The next digit of our result is 4. 
Result so far: 35536.564
Subtracting 2828 from 3080 leaves us with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Step 12:
707 can be fit into 2520 3 times, resulting in a remainder of 399.
Write down 3 as next digit of the result. 
Result so far: 35536.5643
Deduct 2121 from 2520 and we're left with 399.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3990, and continue the process.

Step 13:
The number 707 fits into 3990 5 times, leaving a remainder of 455.
The next digit of our result is 5. 
Result so far: 35536.56435
If we take 3535 away from 3990, we end up with 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

On to step 14:
If we divide 4550 by 707, we get 6 and a remainder of 308.
The number 6 becomes the next digit in our result. 
Result so far: 35536.564356
If we subtract 4242 from 4550, we get 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Let's proceed to step 15:
3080 divided by 707 is 4 with a remainder of 252.
Record the quotient 4 as the next digit in the result. 
Result so far: 35536.5643564
Subtracting 2828 from 3080 leaves us with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Going ahead to step 16:
If we divide 2520 by 707, we get 3 and a remainder of 399.
The next digit of our result is 3. 
Result so far: 35536.56435643
If we subtract 2121 from 2520, we get 399.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3990, and continue the process.

The final outcome is 35536.56435643, with a leftover of 3.99e-07.