We divide 139144 by 28
The aim is to understand the frequency of 28 in 139144.

Going ahead to step 1:
When dividing 1 by 28, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 28

Going ahead to step 2:
13 divided by 28 is 0 with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Fetch the next digit (9) from the dividend, attach it to 13 and continue: 139 / 28

Moving on to step 3:
28 can be fit into 139 4 times, resulting in a remainder of 27.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 27 after subtracting 112 from 139.
Fetch the next digit (1) from the dividend, attach it to 27 and continue: 271 / 28

On to step 4:
When dividing 271 by 28, we get 9 with a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 49.0
Subtracting 252 from 271 leaves us with 19.
Bring next digit (4) of the dividend behind the 19 and repeat the process: 194 / 28

Moving on to step 5:
28 goes into 194 6 times with a remainder of 26.
Put 6 as the next digit of the answer. 
Result so far: 496.0
The remainder is 26 after subtracting 168 from 194.
Grab the next digit (4) from the dividend, add it to 26, then carry on: 264 / 28

On to step 6:
264 divided by 28 is 9 with a remainder of 12.
Write down 9 as next digit of the result. 
Result so far: 4969.0
If we take 252 away from 264, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 7:
When dividing 120 by 28, we get 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 4969.4
The remainder is 8 after subtracting 112 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 8:
When dividing 80 by 28, we get 2 with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 4969.42
The remainder is 24 after subtracting 56 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 9:
If we divide 240 by 28, we get 8 and a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 4969.428
If we subtract 224 from 240, 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.

Advancing to step 10:
28 goes into 160 5 times with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 4969.4285
Subtracting 140 from 160 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 11:
The number 28 fits into 200 7 times, leaving a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 4969.42857
If we subtract 196 from 200, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 12:
28 can be fit into 40 1 times, resulting in a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 4969.428571
Subtracting 28 from 40 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 13:
When dividing 120 by 28, we get 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 4969.4285714
Subtract 112 from 120 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 14:
The number 28 fits into 80 2 times, leaving a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 4969.42857142
The remainder is 24 after subtracting 56 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 4969.42857142 and a remainder of 2.4e-08.