We're dividing 21172311 by 235 
Let's see how many times 235 fits into 21172311.

Step 1:
When dividing 2 by 235, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 235

Going ahead to step 2:
If we divide 21 by 235, we get 0 and 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.
Grab the next digit (1) from the dividend, add it to 21, then carry on: 211 / 235

Advancing to step 3:
The number 235 fits into 211 0 times, leaving a remainder of 211.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 211 and we're left with 211.
Fetch the next digit (7) from the dividend, attach it to 211 and continue: 2117 / 235

Step 4:
2117 divided by 235 is 9 with a remainder of 2.
The next digit of our result is 9. 
Result so far: 9.0
If we take 2115 away from 2117, we end up with 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 235

Moving on to step 5:
The number 235 fits into 22 0 times, leaving a remainder of 22.
Record the quotient 0 as the next digit in the result. 
Result so far: 90.0
If we take 0 away from 22, we end up with 22.
Fetch the next digit (3) from the dividend, attach it to 22 and continue: 223 / 235

Let's proceed to step 6:
When dividing 223 by 235, we get 0 with a remainder of 223.
Record the quotient 0 as the next digit in the result. 
Result so far: 900.0
Deduct 0 from 223 and we're left with 223.
Include the next digit (1) from the dividend after 223, then repeat: 2231 / 235

Going ahead to step 7:
235 can be fit into 2231 9 times, resulting in a remainder of 116.
Write down 9 as next digit of the result. 
Result so far: 9009.0
Subtracting 2115 from 2231 leaves us with 116.
Bring next digit (1) of the dividend behind the 116 and repeat the process: 1161 / 235

Moving on to step 8:
If we divide 1161 by 235, we get 4 and a remainder of 221.
The number 4 becomes the next digit in our result. 
Result so far: 90094.0
Subtract 940 from 1161 to get 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Let's proceed to step 9:
When dividing 2210 by 235, we get 9 with a remainder of 95.
The next digit of our result is 9. 
Result so far: 90094.9
Subtract 2115 from 2210 to get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Let's proceed to step 10:
235 goes into 950 4 times with a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 90094.94
Deduct 940 from 950 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 11:
235 goes into 100 0 times with a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 90094.94
The remainder is 100 after subtracting 0 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 12:
235 can be fit into 1000 4 times, resulting in a remainder of 60.
Put 4 as the next digit of the answer. 
Result so far: 90094.9404
Deduct 940 from 1000 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 13:
600 divided by 235 is 2 with a remainder of 130.
The next digit of our result is 2. 
Result so far: 90094.94042
If we take 470 away from 600, we end up with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 14:
235 can be fit into 1300 5 times, resulting in a remainder of 125.
Write down 5 as next digit of the result. 
Result so far: 90094.940425
If we subtract 1175 from 1300, we get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 15:
1250 divided by 235 is 5 with a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 90094.9404255
Subtracting 1175 from 1250 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

In conclusion, the division gives 90094.9404255 with a balance of 7.5e-07.