57397146 divided by 669 
The aim is to understand the frequency of 669 in 57397146.

Going ahead to step 1:
If we divide 5 by 669, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 669

Advancing to step 2:
669 can be fit into 57 0 times, resulting in a remainder of 57.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 57 and we're left with 57.
Grab the next digit (3) from the dividend, add it to 57, then carry on: 573 / 669

On to step 3:
669 goes into 573 0 times with a remainder of 573.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 573 after subtracting 0 from 573.
Fetch the next digit (9) from the dividend, attach it to 573 and continue: 5739 / 669

Let's proceed to step 4:
The number 669 fits into 5739 8 times, leaving a remainder of 387.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we subtract 5352 from 5739, we get 387.
Grab the next digit (7) from the dividend, add it to 387, then carry on: 3877 / 669

Moving on to step 5:
The number 669 fits into 3877 5 times, leaving a remainder of 532.
Use 5 as the next digit of our solution. 
Result so far: 85.0
Subtract 3345 from 3877 to get 532.
Take the next digit (1) from the dividend and append it to 532, then repeat: 5321 / 669

Let's proceed to step 6:
The number 669 fits into 5321 7 times, leaving a remainder of 638.
Write down 7 as next digit of the result. 
Result so far: 857.0
Subtract 4683 from 5321 to get 638.
Grab the next digit (4) from the dividend, add it to 638, then carry on: 6384 / 669

On to step 7:
6384 divided by 669 is 9 with a remainder of 363.
Write down 9 as next digit of the result. 
Result so far: 8579.0
Subtract 6021 from 6384 to get 363.
Include the next digit (6) from the dividend after 363, then repeat: 3636 / 669

Moving on to step 8:
When dividing 3636 by 669, we get 5 with a remainder of 291.
The next digit of our result is 5. 
Result so far: 85795.0
If we subtract 3345 from 3636, we get 291.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2910, and continue the process.

Going ahead to step 9:
2910 divided by 669 is 4 with a remainder of 234.
Put 4 as the next digit of the answer. 
Result so far: 85795.4
If we take 2676 away from 2910, we end up with 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Let's proceed to step 10:
If we divide 2340 by 669, we get 3 and a remainder of 333.
The next digit of our result is 3. 
Result so far: 85795.43
The remainder is 333 after subtracting 2007 from 2340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

Going ahead to step 11:
The number 669 fits into 3330 4 times, leaving a remainder of 654.
The number 4 becomes the next digit in our result. 
Result so far: 85795.434
Subtracting 2676 from 3330 leaves us with 654.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6540, and continue the process.

Step 12:
If we divide 6540 by 669, we get 9 and a remainder of 519.
Record the quotient 9 as the next digit in the result. 
Result so far: 85795.4349
Deduct 6021 from 6540 and we're left with 519.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5190, and continue the process.

Moving on to step 13:
669 can be fit into 5190 7 times, resulting in a remainder of 507.
Put 7 as the next digit of the answer. 
Result so far: 85795.43497
The remainder is 507 after subtracting 4683 from 5190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5070, and continue the process.

Advancing to step 14:
669 goes into 5070 7 times with a remainder of 387.
Put 7 as the next digit of the answer. 
Result so far: 85795.434977
Subtract 4683 from 5070 to get 387.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3870, and continue the process.

After the division, we end up with 85795.434977 and a remainder of 3.87e-05.