87964928 divided by 28 
The aim is to understand the frequency of 28 in 87964928.

Going ahead to step 1:
When dividing 8 by 28, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 28

On to step 2:
When dividing 87 by 28, we get 3 with a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 84 away from 87, we end up with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 28

Step 3:
When dividing 39 by 28, we get 1 with a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 31.0
If we take 28 away from 39, we end up with 11.
Grab the next digit (6) from the dividend, add it to 11, then carry on: 116 / 28

On to step 4:
28 goes into 116 4 times with a remainder of 4.
The next digit of our result is 4. 
Result so far: 314.0
Subtract 112 from 116 to get 4.
Take the next digit (4) from the dividend and append it to 4, then repeat: 44 / 28

Advancing to step 5:
28 can be fit into 44 1 times, resulting in a remainder of 16.
The next digit of our result is 1. 
Result so far: 3141.0
Subtracting 28 from 44 leaves us with 16.
Take the next digit (9) from the dividend and append it to 16, then repeat: 169 / 28

Let's proceed to step 6:
28 goes into 169 6 times with a remainder of 1.
The next digit of our result is 6. 
Result so far: 31416.0
Deduct 168 from 169 and we're left with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 28

On to step 7:
12 divided by 28 is 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 314160.0
The remainder is 12 after subtracting 0 from 12.
Grab the next digit (8) from the dividend, add it to 12, then carry on: 128 / 28

Advancing to step 8:
If we divide 128 by 28, we get 4 and a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 3141604.0
The remainder is 16 after subtracting 112 from 128.
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.
Use 5 as the next digit of our solution. 
Result so far: 3141604.5
The remainder is 20 after subtracting 140 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 10:
When dividing 200 by 28, we get 7 with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 3141604.57
If we take 196 away from 200, we end up 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.

Step 11:
28 goes into 40 1 times with a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 3141604.571
Deduct 28 from 40 and we're left 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.

On to step 12:
120 divided by 28 is 4 with a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 3141604.5714
Deduct 112 from 120 and we're left 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.

Moving on to step 13:
If we divide 80 by 28, we get 2 and a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 3141604.57142
Deduct 56 from 80 and we're left 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 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: 3141604.571428
Subtract 224 from 240 to 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 15:
The number 28 fits into 160 5 times, leaving a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 3141604.5714285
If we subtract 140 from 160, we get 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 16:
When dividing 200 by 28, we get 7 with a remainder of 4.
The next digit of our result is 7. 
Result so far: 3141604.57142857
Subtracting 196 from 200 leaves us 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.

In conclusion, the division gives 3141604.57142857 with a balance of 4e-09.