20643687 divided by 205 
Let's see how many times 205 fits into 20643687.

Going ahead to step 1:
205 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 205

Moving on to step 2:
205 can be fit into 20 0 times, resulting in a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 20 and we're left with 20.
Include the next digit (6) from the dividend after 20, then repeat: 206 / 205

Advancing to step 3:
205 goes into 206 1 times with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 1 after subtracting 205 from 206.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 205

Going ahead to step 4:
205 goes into 14 0 times with a remainder of 14.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we take 0 away from 14, we end up with 14.
Grab the next digit (3) from the dividend, add it to 14, then carry on: 143 / 205

Step 5:
205 can be fit into 143 0 times, resulting in a remainder of 143.
The number 0 becomes the next digit in our result. 
Result so far: 100.0
The remainder is 143 after subtracting 0 from 143.
Append the next digit (6) from the dividend to 143 and continue with: 1436 / 205

Advancing to step 6:
205 can be fit into 1436 7 times, resulting in a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 1007.0
Subtracting 1435 from 1436 leaves us with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 205

Going ahead to step 7:
205 goes into 18 0 times with a remainder of 18.
The number 0 becomes the next digit in our result. 
Result so far: 10070.0
Subtracting 0 from 18 leaves us with 18.
Include the next digit (7) from the dividend after 18, then repeat: 187 / 205

On to step 8:
205 can be fit into 187 0 times, resulting in a remainder of 187.
Write down 0 as next digit of the result. 
Result so far: 100700.0
If we subtract 0 from 187, we get 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Going ahead to step 9:
The number 205 fits into 1870 9 times, leaving a remainder of 25.
Put 9 as the next digit of the answer. 
Result so far: 100700.9
Subtracting 1845 from 1870 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 10:
If we divide 250 by 205, we get 1 and a remainder of 45.
The next digit of our result is 1. 
Result so far: 100700.91
If we subtract 205 from 250, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 11:
450 divided by 205 is 2 with a remainder of 40.
Write down 2 as next digit of the result. 
Result so far: 100700.912
The remainder is 40 after subtracting 410 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 12:
400 divided by 205 is 1 with a remainder of 195.
Record the quotient 1 as the next digit in the result. 
Result so far: 100700.9121
Deduct 205 from 400 and we're left with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Advancing to step 13:
205 can be fit into 1950 9 times, resulting in a remainder of 105.
The next digit of our result is 9. 
Result so far: 100700.91219
Subtract 1845 from 1950 to get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Let's proceed to step 14:
205 goes into 1050 5 times with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 100700.912195
If we subtract 1025 from 1050, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 15:
205 goes into 250 1 times with a remainder of 45.
Put 1 as the next digit of the answer. 
Result so far: 100700.9121951
The remainder is 45 after subtracting 205 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 16:
205 can be fit into 450 2 times, resulting in a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 100700.91219512
Subtract 410 from 450 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

After the division, we end up with 100700.91219512 and a remainder of 4e-08.