We divide 652170 by 28
The aim is to understand the frequency of 28 in 652170.

On to step 1:
If we divide 6 by 28, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 28

On to step 2:
If we divide 65 by 28, we get 2 and a remainder of 9.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 56 from 65 and we're left with 9.
Take the next digit (2) from the dividend and append it to 9, then repeat: 92 / 28

Step 3:
The number 28 fits into 92 3 times, leaving a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 23.0
If we subtract 84 from 92, we get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 28

Moving on to step 4:
28 goes into 81 2 times with a remainder of 25.
The number 2 becomes the next digit in our result. 
Result so far: 232.0
Subtract 56 from 81 to get 25.
Take the next digit (7) from the dividend and append it to 25, then repeat: 257 / 28

Advancing to step 5:
28 goes into 257 9 times with a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 2329.0
If we subtract 252 from 257, we get 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 28

Going ahead to step 6:
The number 28 fits into 50 1 times, leaving a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 23291.0
If we take 28 away from 50, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 7:
220 divided by 28 is 7 with a remainder of 24.
The number 7 becomes the next digit in our result. 
Result so far: 23291.7
If we take 196 away from 220, we end up with 24.
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 8:
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: 23291.78
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.

On to step 9:
28 can be fit into 160 5 times, resulting in a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 23291.785
If we take 140 away from 160, we end up 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.

Step 10:
The number 28 fits into 200 7 times, leaving a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 23291.7857
Deduct 196 from 200 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 11:
40 divided by 28 is 1 with a remainder of 12.
The next digit of our result is 1. 
Result so far: 23291.78571
If we take 28 away from 40, 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.

Let's proceed to step 12:
If we divide 120 by 28, we get 4 and a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 23291.785714
Subtracting 112 from 120 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 13:
28 can be fit into 80 2 times, resulting in a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 23291.7857142
Subtract 56 from 80 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.

On to step 14:
When dividing 240 by 28, we get 8 with a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 23291.78571428
Subtracting 224 from 240 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 23291.78571428, and the remainder is 1.6e-08.