Let's divide 20919649 by 129
We want to divide 20919649 by 129.

Moving on to step 1:
The number 129 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 129

On to step 2:
20 divided by 129 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Include the next digit (9) from the dividend after 20, then repeat: 209 / 129

Step 3:
The number 129 fits into 209 1 times, leaving a remainder of 80.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 129 away from 209, we end up with 80.
Fetch the next digit (1) from the dividend, attach it to 80 and continue: 801 / 129

Moving on to step 4:
801 divided by 129 is 6 with a remainder of 27.
Put 6 as the next digit of the answer. 
Result so far: 16.0
The remainder is 27 after subtracting 774 from 801.
Append the next digit (9) from the dividend to 27 and continue with: 279 / 129

Moving on to step 5:
129 can be fit into 279 2 times, resulting in a remainder of 21.
Use 2 as the next digit of our solution. 
Result so far: 162.0
Subtracting 258 from 279 leaves us with 21.
Bring next digit (6) of the dividend behind the 21 and repeat the process: 216 / 129

Step 6:
129 goes into 216 1 times with a remainder of 87.
Put 1 as the next digit of the answer. 
Result so far: 1621.0
Subtract 129 from 216 to get 87.
Fetch the next digit (4) from the dividend, attach it to 87 and continue: 874 / 129

On to step 7:
The number 129 fits into 874 6 times, leaving a remainder of 100.
Use 6 as the next digit of our solution. 
Result so far: 16216.0
The remainder is 100 after subtracting 774 from 874.
Append the next digit (9) from the dividend to 100 and continue with: 1009 / 129

Let's proceed to step 8:
If we divide 1009 by 129, we get 7 and a remainder of 106.
The next digit of our result is 7. 
Result so far: 162167.0
If we subtract 903 from 1009, we get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Advancing to step 9:
When dividing 1060 by 129, we get 8 with a remainder of 28.
Use 8 as the next digit of our solution. 
Result so far: 162167.8
If we subtract 1032 from 1060, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 10:
280 divided by 129 is 2 with a remainder of 22.
The next digit of our result is 2. 
Result so far: 162167.82
The remainder is 22 after subtracting 258 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 11:
129 can be fit into 220 1 times, resulting in a remainder of 91.
Write down 1 as next digit of the result. 
Result so far: 162167.821
Subtract 129 from 220 to get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Let's proceed to step 12:
129 can be fit into 910 7 times, resulting in a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 162167.8217
If we subtract 903 from 910, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 13:
129 can be fit into 70 0 times, resulting in a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 162167.8217
The remainder is 70 after subtracting 0 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 14:
The number 129 fits into 700 5 times, leaving a remainder of 55.
Record the quotient 5 as the next digit in the result. 
Result so far: 162167.821705
If we subtract 645 from 700, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 15:
When dividing 550 by 129, we get 4 with a remainder of 34.
The number 4 becomes the next digit in our result. 
Result so far: 162167.8217054
If we subtract 516 from 550, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 16:
129 goes into 340 2 times with a remainder of 82.
Record the quotient 2 as the next digit in the result. 
Result so far: 162167.82170542
Subtracting 258 from 340 leaves us with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Our division results in 162167.82170542 with a remaining 8.2e-08.