638536 ÷ 39 
The aim is to understand the frequency of 39 in 638536.

Going ahead to step 1:
If we divide 6 by 39, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 39

On to step 2:
39 can be fit into 63 1 times, resulting in a remainder of 24.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 39 from 63 leaves us with 24.
Grab the next digit (8) from the dividend, add it to 24, then carry on: 248 / 39

Advancing 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
Deduct 234 from 248 and we're left with 14.
Bring next digit (5) of the dividend behind the 14 and repeat the process: 145 / 39

Step 4:
If we divide 145 by 39, we get 3 and a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 163.0
Deduct 117 from 145 and we're left with 28.
Take the next digit (3) from the dividend and append it to 28, then repeat: 283 / 39

Step 5:
If we divide 283 by 39, we get 7 and a remainder of 10.
The next digit of our result is 7. 
Result so far: 1637.0
If we take 273 away from 283, we end up with 10.
Take the next digit (6) from the dividend and append it to 10, then repeat: 106 / 39

Moving on to step 6:
39 goes into 106 2 times with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 16372.0
Deduct 78 from 106 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 7:
When dividing 280 by 39, we get 7 with a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 16372.7
If we take 273 away from 280, we end up 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.

Going ahead to step 8:
70 divided by 39 is 1 with a remainder of 31.
Put 1 as the next digit of the answer. 
Result so far: 16372.71
Deduct 39 from 70 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 9:
39 goes into 310 7 times with a remainder of 37.
Put 7 as the next digit of the answer. 
Result so far: 16372.717
Deduct 273 from 310 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 10:
370 divided by 39 is 9 with a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 16372.7179
If we subtract 351 from 370, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 11:
39 goes into 190 4 times with a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 16372.71794
Deduct 156 from 190 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 12:
39 can be fit into 340 8 times, resulting in a remainder of 28.
The next digit of our result is 8. 
Result so far: 16372.717948
Subtracting 312 from 340 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 13:
When dividing 280 by 39, we get 7 with a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 16372.7179487
Subtracting 273 from 280 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.

Step 14:
When dividing 70 by 39, we get 1 with a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 16372.71794871
If we subtract 39 from 70, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

In conclusion, the division gives 16372.71794871 with a balance of 3.1e-08.