We're dividing 21034094 by 538 
We want to divide 21034094 by 538.

Step 1:
538 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 538

Let's proceed to step 2:
If we divide 21 by 538, we get 0 and a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Include the next digit (0) from the dividend after 21, then repeat: 210 / 538

Moving on to step 3:
If we divide 210 by 538, we get 0 and a remainder of 210.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 210 and we're left with 210.
Include the next digit (3) from the dividend after 210, then repeat: 2103 / 538

On to step 4:
When dividing 2103 by 538, we get 3 with a remainder of 489.
The next digit of our result is 3. 
Result so far: 3.0
If we take 1614 away from 2103, we end up with 489.
Grab the next digit (4) from the dividend, add it to 489, then carry on: 4894 / 538

Let's proceed to step 5:
538 can be fit into 4894 9 times, resulting in a remainder of 52.
The next digit of our result is 9. 
Result so far: 39.0
Subtracting 4842 from 4894 leaves us with 52.
Take the next digit (0) from the dividend and append it to 52, then repeat: 520 / 538

Going ahead to step 6:
When dividing 520 by 538, we get 0 with a remainder of 520.
Put 0 as the next digit of the answer. 
Result so far: 390.0
If we take 0 away from 520, we end up with 520.
Include the next digit (9) from the dividend after 520, then repeat: 5209 / 538

On to step 7:
If we divide 5209 by 538, we get 9 and a remainder of 367.
The number 9 becomes the next digit in our result. 
Result so far: 3909.0
Deduct 4842 from 5209 and we're left with 367.
Take the next digit (4) from the dividend and append it to 367, then repeat: 3674 / 538

Moving on to step 8:
When dividing 3674 by 538, we get 6 with a remainder of 446.
The next digit of our result is 6. 
Result so far: 39096.0
Subtract 3228 from 3674 to get 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Moving on to step 9:
The number 538 fits into 4460 8 times, leaving a remainder of 156.
Use 8 as the next digit of our solution. 
Result so far: 39096.8
Subtract 4304 from 4460 to get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

On to step 10:
538 can be fit into 1560 2 times, resulting in a remainder of 484.
Record the quotient 2 as the next digit in the result. 
Result so far: 39096.82
The remainder is 484 after subtracting 1076 from 1560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

Let's proceed to step 11:
538 can be fit into 4840 8 times, resulting in a remainder of 536.
Record the quotient 8 as the next digit in the result. 
Result so far: 39096.828
Subtracting 4304 from 4840 leaves us with 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

On to step 12:
The number 538 fits into 5360 9 times, leaving a remainder of 518.
The number 9 becomes the next digit in our result. 
Result so far: 39096.8289
Deduct 4842 from 5360 and we're left with 518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

On to step 13:
5180 divided by 538 is 9 with a remainder of 338.
Put 9 as the next digit of the answer. 
Result so far: 39096.82899
If we subtract 4842 from 5180, we get 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

The final outcome is 39096.82899, with a leftover of 0.000338.