638379 ÷ 39 
The aim is to understand the frequency of 39 in 638379.

Going ahead to step 1:
The number 39 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 39

Let's proceed to step 2:
63 divided by 39 is 1 with a remainder of 24.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 39 from 63 to get 24.
Fetch the next digit (8) from the dividend, attach it to 24 and continue: 248 / 39

Going ahead to step 3:
The number 39 fits into 248 6 times, leaving a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
Subtract 234 from 248 to get 14.
Append the next digit (3) from the dividend to 14 and continue with: 143 / 39

On to step 4:
39 goes into 143 3 times with a remainder of 26.
Record the quotient 3 as the next digit in the result. 
Result so far: 163.0
Subtract 117 from 143 to get 26.
Bring next digit (7) of the dividend behind the 26 and repeat the process: 267 / 39

Step 5:
39 can be fit into 267 6 times, resulting in a remainder of 33.
Record the quotient 6 as the next digit in the result. 
Result so far: 1636.0
If we take 234 away from 267, we end up with 33.
Grab the next digit (9) from the dividend, add it to 33, then carry on: 339 / 39

Advancing to step 6:
The number 39 fits into 339 8 times, leaving a remainder of 27.
The number 8 becomes the next digit in our result. 
Result so far: 16368.0
The remainder is 27 after subtracting 312 from 339.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 7:
39 goes into 270 6 times with a remainder of 36.
Put 6 as the next digit of the answer. 
Result so far: 16368.6
Subtracting 234 from 270 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 8:
360 divided by 39 is 9 with a remainder of 9.
Record the quotient 9 as the next digit in the result. 
Result so far: 16368.69
Subtract 351 from 360 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 9:
39 can be fit into 90 2 times, resulting in a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 16368.692
If we subtract 78 from 90, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 10:
When dividing 120 by 39, we get 3 with a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 16368.6923
If we subtract 117 from 120, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 11:
The number 39 fits into 30 0 times, leaving a remainder of 30.
The next digit of our result is 0. 
Result so far: 16368.6923
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 12:
39 can be fit into 300 7 times, resulting in a remainder of 27.
The number 7 becomes the next digit in our result. 
Result so far: 16368.692307
If we take 273 away from 300, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 13:
If we divide 270 by 39, we get 6 and a remainder of 36.
The next digit of our result is 6. 
Result so far: 16368.6923076
If we take 234 away from 270, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 14:
39 goes into 360 9 times with a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 16368.69230769
The remainder is 9 after subtracting 351 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The quotient of the division is 16368.69230769, and the remainder is 9e-09.