We're dividing 215398 by 99 
We want to figure out the number of times 215398 can be divided by 99.

Let's proceed to step 1:
When dividing 2 by 99, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 99

Advancing to step 2:
99 goes into 21 0 times with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Include the next digit (5) from the dividend after 21, then repeat: 215 / 99

Advancing to step 3:
99 can be fit into 215 2 times, resulting in a remainder of 17.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 17 after subtracting 198 from 215.
Fetch the next digit (3) from the dividend, attach it to 17 and continue: 173 / 99

Going ahead to step 4:
99 can be fit into 173 1 times, resulting in a remainder of 74.
The next digit of our result is 1. 
Result so far: 21.0
Subtract 99 from 173 to get 74.
Bring next digit (9) of the dividend behind the 74 and repeat the process: 749 / 99

Moving on to step 5:
99 can be fit into 749 7 times, resulting in a remainder of 56.
Put 7 as the next digit of the answer. 
Result so far: 217.0
If we subtract 693 from 749, we get 56.
Include the next digit (8) from the dividend after 56, then repeat: 568 / 99

Going ahead to step 6:
99 can be fit into 568 5 times, resulting in a remainder of 73.
Record the quotient 5 as the next digit in the result. 
Result so far: 2175.0
If we subtract 495 from 568, we get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 7:
99 goes into 730 7 times with a remainder of 37.
Write down 7 as next digit of the result. 
Result so far: 2175.7
Deduct 693 from 730 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 8:
When dividing 370 by 99, we get 3 with a remainder of 73.
Record the quotient 3 as the next digit in the result. 
Result so far: 2175.73
Deduct 297 from 370 and we're left with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 9:
730 divided by 99 is 7 with a remainder of 37.
Record the quotient 7 as the next digit in the result. 
Result so far: 2175.737
Subtracting 693 from 730 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 10:
99 goes into 370 3 times with a remainder of 73.
The number 3 becomes the next digit in our result. 
Result so far: 2175.7373
Subtract 297 from 370 to get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 11:
730 divided by 99 is 7 with a remainder of 37.
The number 7 becomes the next digit in our result. 
Result so far: 2175.73737
If we subtract 693 from 730, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 12:
370 divided by 99 is 3 with a remainder of 73.
The number 3 becomes the next digit in our result. 
Result so far: 2175.737373
The remainder is 73 after subtracting 297 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

On to step 13:
When dividing 730 by 99, we get 7 with a remainder of 37.
Use 7 as the next digit of our solution. 
Result so far: 2175.7373737
If we subtract 693 from 730, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 14:
The number 99 fits into 370 3 times, leaving a remainder of 73.
The next digit of our result is 3. 
Result so far: 2175.73737373
Subtract 297 from 370 to get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Our division results in 2175.73737373 with a remaining 7.3e-08.