We look at the division of 25294691 by 770 
The aim is to understand the frequency of 770 in 25294691.

Advancing to step 1:
770 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 770

Let's proceed to step 2:
770 can be fit into 25 0 times, resulting in a remainder of 25.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Bring next digit (2) of the dividend behind the 25 and repeat the process: 252 / 770

Let's proceed to step 3:
If we divide 252 by 770, we get 0 and a remainder of 252.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 252 after subtracting 0 from 252.
Bring next digit (9) of the dividend behind the 252 and repeat the process: 2529 / 770

Moving on to step 4:
If we divide 2529 by 770, we get 3 and a remainder of 219.
The next digit of our result is 3. 
Result so far: 3.0
If we take 2310 away from 2529, we end up with 219.
Include the next digit (4) from the dividend after 219, then repeat: 2194 / 770

Moving on to step 5:
When dividing 2194 by 770, we get 2 with a remainder of 654.
Record the quotient 2 as the next digit in the result. 
Result so far: 32.0
Subtract 1540 from 2194 to get 654.
Fetch the next digit (6) from the dividend, attach it to 654 and continue: 6546 / 770

On to step 6:
If we divide 6546 by 770, we get 8 and a remainder of 386.
Put 8 as the next digit of the answer. 
Result so far: 328.0
Subtracting 6160 from 6546 leaves us with 386.
Take the next digit (9) from the dividend and append it to 386, then repeat: 3869 / 770

Step 7:
770 can be fit into 3869 5 times, resulting in a remainder of 19.
The number 5 becomes the next digit in our result. 
Result so far: 3285.0
Subtracting 3850 from 3869 leaves us with 19.
Append the next digit (1) from the dividend to 19 and continue with: 191 / 770

Let's proceed to step 8:
When dividing 191 by 770, we get 0 with a remainder of 191.
The number 0 becomes the next digit in our result. 
Result so far: 32850.0
The remainder is 191 after subtracting 0 from 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

Let's proceed to step 9:
770 can be fit into 1910 2 times, resulting in a remainder of 370.
Record the quotient 2 as the next digit in the result. 
Result so far: 32850.2
Deduct 1540 from 1910 and we're left with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

On to step 10:
3700 divided by 770 is 4 with a remainder of 620.
Put 4 as the next digit of the answer. 
Result so far: 32850.24
Subtracting 3080 from 3700 leaves us with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Step 11:
6200 divided by 770 is 8 with a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 32850.248
The remainder is 40 after subtracting 6160 from 6200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 12:
770 goes into 400 0 times with a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 32850.248
If we subtract 0 from 400, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Advancing to step 13:
4000 divided by 770 is 5 with a remainder of 150.
Put 5 as the next digit of the answer. 
Result so far: 32850.24805
Subtracting 3850 from 4000 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 14:
The number 770 fits into 1500 1 times, leaving a remainder of 730.
The next digit of our result is 1. 
Result so far: 32850.248051
If we subtract 770 from 1500, we get 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7300, and continue the process.

Step 15:
When dividing 7300 by 770, we get 9 with a remainder of 370.
The number 9 becomes the next digit in our result. 
Result so far: 32850.2480519
If we subtract 6930 from 7300, we get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Going ahead to step 16:
770 can be fit into 3700 4 times, resulting in a remainder of 620.
The next digit of our result is 4. 
Result so far: 32850.24805194
Deduct 3080 from 3700 and we're left with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

After the division, we end up with 32850.24805194 and a remainder of 6.2e-07.