20908643 divided by 286 
We want to figure out the number of times 20908643 can be divided by 286.

Let's proceed to step 1:
2 divided by 286 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 286

Let's proceed to step 2:
The number 286 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 20, we end up with 20.
Bring next digit (9) of the dividend behind the 20 and repeat the process: 209 / 286

Step 3:
286 goes into 209 0 times with a remainder of 209.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 209 and we're left with 209.
Append the next digit (0) from the dividend to 209 and continue with: 2090 / 286

Going ahead to step 4:
When dividing 2090 by 286, we get 7 with a remainder of 88.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we subtract 2002 from 2090, we get 88.
Include the next digit (8) from the dividend after 88, then repeat: 888 / 286

On to step 5:
When dividing 888 by 286, we get 3 with a remainder of 30.
The next digit of our result is 3. 
Result so far: 73.0
Subtract 858 from 888 to get 30.
Include the next digit (6) from the dividend after 30, then repeat: 306 / 286

Step 6:
When dividing 306 by 286, we get 1 with a remainder of 20.
Write down 1 as next digit of the result. 
Result so far: 731.0
If we subtract 286 from 306, we get 20.
Grab the next digit (4) from the dividend, add it to 20, then carry on: 204 / 286

Going ahead to step 7:
The number 286 fits into 204 0 times, leaving a remainder of 204.
The next digit of our result is 0. 
Result so far: 7310.0
If we subtract 0 from 204, we get 204.
Grab the next digit (3) from the dividend, add it to 204, then carry on: 2043 / 286

Moving on to step 8:
2043 divided by 286 is 7 with a remainder of 41.
Put 7 as the next digit of the answer. 
Result so far: 73107.0
Subtract 2002 from 2043 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 9:
410 divided by 286 is 1 with a remainder of 124.
Use 1 as the next digit of our solution. 
Result so far: 73107.1
If we subtract 286 from 410, we get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

On to step 10:
When dividing 1240 by 286, we get 4 with a remainder of 96.
The number 4 becomes the next digit in our result. 
Result so far: 73107.14
The remainder is 96 after subtracting 1144 from 1240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Let's proceed to step 11:
286 can be fit into 960 3 times, resulting in a remainder of 102.
Write down 3 as next digit of the result. 
Result so far: 73107.143
If we subtract 858 from 960, we get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Let's proceed to step 12:
286 goes into 1020 3 times with a remainder of 162.
The next digit of our result is 3. 
Result so far: 73107.1433
Subtract 858 from 1020 to get 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

The final result is 73107.1433 with a remainder of 0.00162.