Let's divide 217988 by 28
Let's see how many times 28 fits into 217988.

Going ahead to step 1:
When dividing 2 by 28, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 28

Step 2:
When dividing 21 by 28, we get 0 with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Bring next digit (7) of the dividend behind the 21 and repeat the process: 217 / 28

Going ahead to step 3:
217 divided by 28 is 7 with a remainder of 21.
The next digit of our result is 7. 
Result so far: 7.0
Subtract 196 from 217 to get 21.
Append the next digit (9) from the dividend to 21 and continue with: 219 / 28

Going ahead to step 4:
If we divide 219 by 28, we get 7 and a remainder of 23.
Put 7 as the next digit of the answer. 
Result so far: 77.0
The remainder is 23 after subtracting 196 from 219.
Fetch the next digit (8) from the dividend, attach it to 23 and continue: 238 / 28

Advancing to step 5:
The number 28 fits into 238 8 times, leaving a remainder of 14.
The next digit of our result is 8. 
Result so far: 778.0
If we subtract 224 from 238, we get 14.
Take the next digit (8) from the dividend and append it to 14, then repeat: 148 / 28

Going ahead to step 6:
28 goes into 148 5 times with a remainder of 8.
The next digit of our result is 5. 
Result so far: 7785.0
Deduct 140 from 148 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.

Going ahead to step 7:
28 goes into 80 2 times with a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 7785.2
If we subtract 56 from 80, we 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.

Step 8:
240 divided by 28 is 8 with a remainder of 16.
The next digit of our result is 8. 
Result so far: 7785.28
If we take 224 away from 240, we end up 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.

On to step 9:
When dividing 160 by 28, we get 5 with a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 7785.285
Subtract 140 from 160 to 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.

On to step 10:
If we divide 200 by 28, we get 7 and a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 7785.2857
The remainder is 4 after subtracting 196 from 200.
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:
If we divide 40 by 28, we get 1 and a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 7785.28571
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:
The number 28 fits into 120 4 times, leaving a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 7785.285714
If we take 112 away from 120, we end up 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.

Advancing to step 13:
The number 28 fits into 80 2 times, leaving a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 7785.2857142
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 14:
If we divide 240 by 28, we get 8 and a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 7785.28571428
If we take 224 away from 240, we end up 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 final outcome is 7785.28571428, with a leftover of 1.6e-08.