21945923 ÷ 204 
Our goal is to divide 21945923 by 204.

On to step 1:
The number 204 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 204

Moving on to step 2:
If we divide 21 by 204, we get 0 and a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Include the next digit (9) from the dividend after 21, then repeat: 219 / 204

Step 3:
The number 204 fits into 219 1 times, leaving a remainder of 15.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 204 from 219 and we're left with 15.
Include the next digit (4) from the dividend after 15, then repeat: 154 / 204

Going ahead to step 4:
204 goes into 154 0 times with a remainder of 154.
Write down 0 as next digit of the result. 
Result so far: 10.0
Deduct 0 from 154 and we're left with 154.
Grab the next digit (5) from the dividend, add it to 154, then carry on: 1545 / 204

Let's proceed to step 5:
If we divide 1545 by 204, we get 7 and a remainder of 117.
The number 7 becomes the next digit in our result. 
Result so far: 107.0
Subtract 1428 from 1545 to get 117.
Take the next digit (9) from the dividend and append it to 117, then repeat: 1179 / 204

Going ahead to step 6:
204 can be fit into 1179 5 times, resulting in a remainder of 159.
The next digit of our result is 5. 
Result so far: 1075.0
Subtracting 1020 from 1179 leaves us with 159.
Include the next digit (2) from the dividend after 159, then repeat: 1592 / 204

On to step 7:
When dividing 1592 by 204, we get 7 with a remainder of 164.
The number 7 becomes the next digit in our result. 
Result so far: 10757.0
The remainder is 164 after subtracting 1428 from 1592.
Append the next digit (3) from the dividend to 164 and continue with: 1643 / 204

On to step 8:
204 can be fit into 1643 8 times, resulting in a remainder of 11.
Record the quotient 8 as the next digit in the result. 
Result so far: 107578.0
Subtracting 1632 from 1643 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 9:
When dividing 110 by 204, we get 0 with a remainder of 110.
Use 0 as the next digit of our solution. 
Result so far: 107578.0
Deduct 0 from 110 and we're left with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Going ahead to step 10:
204 can be fit into 1100 5 times, resulting in a remainder of 80.
Put 5 as the next digit of the answer. 
Result so far: 107578.05
If we take 1020 away from 1100, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 11:
204 can be fit into 800 3 times, resulting in a remainder of 188.
The next digit of our result is 3. 
Result so far: 107578.053
The remainder is 188 after subtracting 612 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Going ahead to step 12:
204 goes into 1880 9 times with a remainder of 44.
The next digit of our result is 9. 
Result so far: 107578.0539
If we subtract 1836 from 1880, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 13:
When dividing 440 by 204, we get 2 with a remainder of 32.
The next digit of our result is 2. 
Result so far: 107578.05392
Deduct 408 from 440 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 14:
The number 204 fits into 320 1 times, leaving a remainder of 116.
Use 1 as the next digit of our solution. 
Result so far: 107578.053921
The remainder is 116 after subtracting 204 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Let's proceed to step 15:
204 goes into 1160 5 times with a remainder of 140.
Record the quotient 5 as the next digit in the result. 
Result so far: 107578.0539215
Subtract 1020 from 1160 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 16:
The number 204 fits into 1400 6 times, leaving a remainder of 176.
The next digit of our result is 6. 
Result so far: 107578.05392156
Subtract 1224 from 1400 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

After the division, we end up with 107578.05392156 and a remainder of 1.76e-07.