We're dividing 21259560 by 774 
The aim is to understand the frequency of 774 in 21259560.

Going ahead to step 1:
774 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 774

Going ahead to step 2:
The number 774 fits into 21 0 times, leaving a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Take the next digit (2) from the dividend and append it to 21, then repeat: 212 / 774

Let's proceed to step 3:
When dividing 212 by 774, we get 0 with a remainder of 212.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 212, we end up with 212.
Append the next digit (5) from the dividend to 212 and continue with: 2125 / 774

Advancing to step 4:
If we divide 2125 by 774, we get 2 and a remainder of 577.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 1548 away from 2125, we end up with 577.
Bring next digit (9) of the dividend behind the 577 and repeat the process: 5779 / 774

Step 5:
The number 774 fits into 5779 7 times, leaving a remainder of 361.
Write down 7 as next digit of the result. 
Result so far: 27.0
Deduct 5418 from 5779 and we're left with 361.
Bring next digit (5) of the dividend behind the 361 and repeat the process: 3615 / 774

Going ahead to step 6:
774 goes into 3615 4 times with a remainder of 519.
Record the quotient 4 as the next digit in the result. 
Result so far: 274.0
If we take 3096 away from 3615, we end up with 519.
Bring next digit (6) of the dividend behind the 519 and repeat the process: 5196 / 774

Going ahead to step 7:
If we divide 5196 by 774, we get 6 and a remainder of 552.
Record the quotient 6 as the next digit in the result. 
Result so far: 2746.0
If we take 4644 away from 5196, we end up with 552.
Bring next digit (0) of the dividend behind the 552 and repeat the process: 5520 / 774

Step 8:
When dividing 5520 by 774, we get 7 with a remainder of 102.
Record the quotient 7 as the next digit in the result. 
Result so far: 27467.0
If we subtract 5418 from 5520, we get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Moving on to step 9:
774 can be fit into 1020 1 times, resulting in a remainder of 246.
Write down 1 as next digit of the result. 
Result so far: 27467.1
Subtracting 774 from 1020 leaves us with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Moving on to step 10:
774 can be fit into 2460 3 times, resulting in a remainder of 138.
The number 3 becomes the next digit in our result. 
Result so far: 27467.13
Subtract 2322 from 2460 to get 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Going ahead to step 11:
When dividing 1380 by 774, we get 1 with a remainder of 606.
Put 1 as the next digit of the answer. 
Result so far: 27467.131
Subtract 774 from 1380 to get 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Step 12:
6060 divided by 774 is 7 with a remainder of 642.
Record the quotient 7 as the next digit in the result. 
Result so far: 27467.1317
The remainder is 642 after subtracting 5418 from 6060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6420, and continue the process.

Let's proceed to step 13:
774 goes into 6420 8 times with a remainder of 228.
Record the quotient 8 as the next digit in the result. 
Result so far: 27467.13178
If we subtract 6192 from 6420, we get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Advancing to step 14:
774 goes into 2280 2 times with a remainder of 732.
The number 2 becomes the next digit in our result. 
Result so far: 27467.131782
If we take 1548 away from 2280, we end up with 732.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7320, and continue the process.

Going ahead to step 15:
774 goes into 7320 9 times with a remainder of 354.
Write down 9 as next digit of the result. 
Result so far: 27467.1317829
If we take 6966 away from 7320, we end up with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Let's proceed to step 16:
774 goes into 3540 4 times with a remainder of 444.
Put 4 as the next digit of the answer. 
Result so far: 27467.13178294
Subtract 3096 from 3540 to get 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

The final result is 27467.13178294 with a remainder of 4.44e-07.