28215670 ÷ 87 
We want to figure out the number of times 28215670 can be divided by 87.

Step 1:
If we divide 2 by 87, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 87

On to step 2:
If we divide 28 by 87, we get 0 and a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 28 and we're left with 28.
Grab the next digit (2) from the dividend, add it to 28, then carry on: 282 / 87

Moving on to step 3:
The number 87 fits into 282 3 times, leaving a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 261 from 282, we get 21.
Bring next digit (1) of the dividend behind the 21 and repeat the process: 211 / 87

Going ahead to step 4:
87 can be fit into 211 2 times, resulting in a remainder of 37.
Record the quotient 2 as the next digit in the result. 
Result so far: 32.0
Deduct 174 from 211 and we're left with 37.
Bring next digit (5) of the dividend behind the 37 and repeat the process: 375 / 87

Let's proceed to step 5:
When dividing 375 by 87, we get 4 with a remainder of 27.
The next digit of our result is 4. 
Result so far: 324.0
The remainder is 27 after subtracting 348 from 375.
Fetch the next digit (6) from the dividend, attach it to 27 and continue: 276 / 87

Let's proceed to step 6:
87 goes into 276 3 times with a remainder of 15.
Use 3 as the next digit of our solution. 
Result so far: 3243.0
The remainder is 15 after subtracting 261 from 276.
Append the next digit (7) from the dividend to 15 and continue with: 157 / 87

Step 7:
87 can be fit into 157 1 times, resulting in a remainder of 70.
Write down 1 as next digit of the result. 
Result so far: 32431.0
The remainder is 70 after subtracting 87 from 157.
Take the next digit (0) from the dividend and append it to 70, then repeat: 700 / 87

Let's proceed to step 8:
87 goes into 700 8 times with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 324318.0
Deduct 696 from 700 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.

Going ahead to step 9:
40 divided by 87 is 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 324318.0
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
When dividing 400 by 87, we get 4 with a remainder of 52.
Put 4 as the next digit of the answer. 
Result so far: 324318.04
Deduct 348 from 400 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 11:
If we divide 520 by 87, we get 5 and a remainder of 85.
Put 5 as the next digit of the answer. 
Result so far: 324318.045
Subtract 435 from 520 to get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

On to step 12:
87 goes into 850 9 times with a remainder of 67.
Put 9 as the next digit of the answer. 
Result so far: 324318.0459
If we take 783 away from 850, we end up with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Advancing to step 13:
670 divided by 87 is 7 with a remainder of 61.
The next digit of our result is 7. 
Result so far: 324318.04597
The remainder is 61 after subtracting 609 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 14:
When dividing 610 by 87, we get 7 with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 324318.045977
Subtract 609 from 610 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

After the division, we end up with 324318.045977 and a remainder of 1e-07.