Let's divide 38407906 by 57
The aim is to understand the frequency of 57 in 38407906.

Let's proceed to step 1:
When dividing 3 by 57, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 57

Step 2:
If we divide 38 by 57, we get 0 and a remainder of 38.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 38 after subtracting 0 from 38.
Grab the next digit (4) from the dividend, add it to 38, then carry on: 384 / 57

Advancing to step 3:
If we divide 384 by 57, we get 6 and a remainder of 42.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we subtract 342 from 384, we get 42.
Take the next digit (0) from the dividend and append it to 42, then repeat: 420 / 57

Step 4:
When dividing 420 by 57, we get 7 with a remainder of 21.
Record the quotient 7 as the next digit in the result. 
Result so far: 67.0
The remainder is 21 after subtracting 399 from 420.
Include the next digit (7) from the dividend after 21, then repeat: 217 / 57

Advancing to step 5:
57 can be fit into 217 3 times, resulting in a remainder of 46.
Use 3 as the next digit of our solution. 
Result so far: 673.0
Deduct 171 from 217 and we're left with 46.
Append the next digit (9) from the dividend to 46 and continue with: 469 / 57

Going ahead to step 6:
469 divided by 57 is 8 with a remainder of 13.
The next digit of our result is 8. 
Result so far: 6738.0
The remainder is 13 after subtracting 456 from 469.
Bring next digit (0) of the dividend behind the 13 and repeat the process: 130 / 57

Going ahead to step 7:
When dividing 130 by 57, we get 2 with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 67382.0
Subtract 114 from 130 to get 16.
Take the next digit (6) from the dividend and append it to 16, then repeat: 166 / 57

Moving on to step 8:
The number 57 fits into 166 2 times, leaving a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 673822.0
Deduct 114 from 166 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 9:
If we divide 520 by 57, we get 9 and a remainder of 7.
Write down 9 as next digit of the result. 
Result so far: 673822.9
Subtracting 513 from 520 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 10:
If we divide 70 by 57, we get 1 and a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 673822.91
If we subtract 57 from 70, we 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.

Moving on to step 11:
57 goes into 130 2 times with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 673822.912
If we subtract 114 from 130, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 12:
57 goes into 160 2 times with a remainder of 46.
Use 2 as the next digit of our solution. 
Result so far: 673822.9122
Subtracting 114 from 160 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

The final result is 673822.9122 with a remainder of 0.00046.