Let's divide 42651 by 39
The aim is to understand the frequency of 39 in 42651.

Let's proceed to step 1:
If we divide 4 by 39, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 39

Step 2:
If we divide 42 by 39, we get 1 and a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 39 from 42 to get 3.
Include the next digit (6) from the dividend after 3, then repeat: 36 / 39

Moving on to step 3:
If we divide 36 by 39, we get 0 and a remainder of 36.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we take 0 away from 36, we end up with 36.
Include the next digit (5) from the dividend after 36, then repeat: 365 / 39

On to step 4:
If we divide 365 by 39, we get 9 and a remainder of 14.
Put 9 as the next digit of the answer. 
Result so far: 109.0
If we subtract 351 from 365, we get 14.
Take the next digit (1) from the dividend and append it to 14, then repeat: 141 / 39

Going ahead to step 5:
141 divided by 39 is 3 with a remainder of 24.
Put 3 as the next digit of the answer. 
Result so far: 1093.0
Subtract 117 from 141 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 6:
When dividing 240 by 39, we get 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 1093.6
The remainder is 6 after subtracting 234 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
60 divided by 39 is 1 with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 1093.61
Deduct 39 from 60 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 8:
When dividing 210 by 39, we get 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 1093.615
Subtracting 195 from 210 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 9:
The number 39 fits into 150 3 times, leaving a remainder of 33.
Use 3 as the next digit of our solution. 
Result so far: 1093.6153
The remainder is 33 after subtracting 117 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 10:
If we divide 330 by 39, we get 8 and a remainder of 18.
The next digit of our result is 8. 
Result so far: 1093.61538
If we take 312 away from 330, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 11:
39 can be fit into 180 4 times, resulting in a remainder of 24.
The next digit of our result is 4. 
Result so far: 1093.615384
The remainder is 24 after subtracting 156 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 12:
39 goes into 240 6 times with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 1093.6153846
If we subtract 234 from 240, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 13:
If we divide 60 by 39, we get 1 and a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 1093.61538461
Deduct 39 from 60 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

After the division, we end up with 1093.61538461 and a remainder of 2.1e-08.