28707508 ÷ 870 
The aim is to understand the frequency of 870 in 28707508.

Step 1:
If we divide 2 by 870, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 870

Let's proceed to step 2:
28 divided by 870 is 0 with a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 28, we get 28.
Grab the next digit (7) from the dividend, add it to 28, then carry on: 287 / 870

Let's proceed to step 3:
287 divided by 870 is 0 with a remainder of 287.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 287 and we're left with 287.
Bring next digit (0) of the dividend behind the 287 and repeat the process: 2870 / 870

On to step 4:
870 can be fit into 2870 3 times, resulting in a remainder of 260.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 260 after subtracting 2610 from 2870.
Fetch the next digit (7) from the dividend, attach it to 260 and continue: 2607 / 870

Advancing to step 5:
870 can be fit into 2607 2 times, resulting in a remainder of 867.
The number 2 becomes the next digit in our result. 
Result so far: 32.0
The remainder is 867 after subtracting 1740 from 2607.
Include the next digit (5) from the dividend after 867, then repeat: 8675 / 870

Moving on to step 6:
When dividing 8675 by 870, we get 9 with a remainder of 845.
Write down 9 as next digit of the result. 
Result so far: 329.0
If we subtract 7830 from 8675, we get 845.
Append the next digit (0) from the dividend to 845 and continue with: 8450 / 870

On to step 7:
8450 divided by 870 is 9 with a remainder of 620.
Write down 9 as next digit of the result. 
Result so far: 3299.0
Subtract 7830 from 8450 to get 620.
Take the next digit (8) from the dividend and append it to 620, then repeat: 6208 / 870

Going ahead to step 8:
870 can be fit into 6208 7 times, resulting in a remainder of 118.
Use 7 as the next digit of our solution. 
Result so far: 32997.0
Deduct 6090 from 6208 and we're left with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

On to step 9:
The number 870 fits into 1180 1 times, leaving a remainder of 310.
Put 1 as the next digit of the answer. 
Result so far: 32997.1
Subtract 870 from 1180 to get 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Going ahead to step 10:
870 can be fit into 3100 3 times, resulting in a remainder of 490.
Use 3 as the next digit of our solution. 
Result so far: 32997.13
If we take 2610 away from 3100, we end up with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Step 11:
870 can be fit into 4900 5 times, resulting in a remainder of 550.
The number 5 becomes the next digit in our result. 
Result so far: 32997.135
If we take 4350 away from 4900, we end up with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

On to step 12:
870 can be fit into 5500 6 times, resulting in a remainder of 280.
The number 6 becomes the next digit in our result. 
Result so far: 32997.1356
Deduct 5220 from 5500 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Going ahead to step 13:
870 can be fit into 2800 3 times, resulting in a remainder of 190.
Write down 3 as next digit of the result. 
Result so far: 32997.13563
If we subtract 2610 from 2800, we get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Step 14:
870 can be fit into 1900 2 times, resulting in a remainder of 160.
Record the quotient 2 as the next digit in the result. 
Result so far: 32997.135632
Deduct 1740 from 1900 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 15:
The number 870 fits into 1600 1 times, leaving a remainder of 730.
The next digit of our result is 1. 
Result so far: 32997.1356321
The remainder is 730 after subtracting 870 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7300, and continue the process.

Let's proceed to step 16:
The number 870 fits into 7300 8 times, leaving a remainder of 340.
The next digit of our result is 8. 
Result so far: 32997.13563218
If we subtract 6960 from 7300, we get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Our division results in 32997.13563218 with a remaining 3.4e-07.