We divide 286707 by 21
Our goal is to divide 286707 by 21.

Advancing to step 1:
21 can be fit into 2 0 times, resulting in 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.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 21

Moving on to step 2:
21 goes into 28 1 times with a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 21 from 28 and we're left with 7.
Include the next digit (6) from the dividend after 7, then repeat: 76 / 21

Let's proceed to step 3:
When dividing 76 by 21, we get 3 with a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we subtract 63 from 76, we get 13.
Take the next digit (7) from the dividend and append it to 13, then repeat: 137 / 21

Going ahead to step 4:
The number 21 fits into 137 6 times, leaving a remainder of 11.
Write down 6 as next digit of the result. 
Result so far: 136.0
Subtracting 126 from 137 leaves us with 11.
Include the next digit (0) from the dividend after 11, then repeat: 110 / 21

Step 5:
21 can be fit into 110 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 1365.0
If we subtract 105 from 110, we get 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 21

On to step 6:
57 divided by 21 is 2 with a remainder of 15.
Put 2 as the next digit of the answer. 
Result so far: 13652.0
Deduct 42 from 57 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 7:
If we divide 150 by 21, we get 7 and a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 13652.7
The remainder is 3 after subtracting 147 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 8:
30 divided by 21 is 1 with a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 13652.71
If we take 21 away from 30, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 9:
21 can be fit into 90 4 times, resulting in a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 13652.714
Deduct 84 from 90 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 10:
60 divided by 21 is 2 with a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 13652.7142
Subtracting 42 from 60 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 11:
21 can be fit into 180 8 times, resulting in a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 13652.71428
If we subtract 168 from 180, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 12:
The number 21 fits into 120 5 times, leaving a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 13652.714285
Deduct 105 from 120 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 13:
When dividing 150 by 21, we get 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 13652.7142857
Subtract 147 from 150 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 14:
21 goes into 30 1 times with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 13652.71428571
If we take 21 away from 30, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

In conclusion, the division gives 13652.71428571 with a balance of 9e-09.