289687 divided by 21 
We want to divide 289687 by 21.

Moving on to step 1:
21 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
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

Going ahead to step 2:
The number 21 fits into 28 1 times, leaving a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 21 from 28 leaves us with 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 21

Advancing to step 3:
79 divided by 21 is 3 with a remainder of 16.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we take 63 away from 79, we end up with 16.
Fetch the next digit (6) from the dividend, attach it to 16 and continue: 166 / 21

Going ahead to step 4:
21 goes into 166 7 times with a remainder of 19.
Put 7 as the next digit of the answer. 
Result so far: 137.0
Subtracting 147 from 166 leaves us with 19.
Bring next digit (8) of the dividend behind the 19 and repeat the process: 198 / 21

Step 5:
21 can be fit into 198 9 times, resulting in a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 1379.0
If we subtract 189 from 198, we get 9.
Grab the next digit (7) from the dividend, add it to 9, then carry on: 97 / 21

Going ahead to step 6:
21 can be fit into 97 4 times, resulting in a remainder of 13.
Write down 4 as next digit of the result. 
Result so far: 13794.0
Deduct 84 from 97 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 7:
If we divide 130 by 21, we get 6 and a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 13794.6
Subtracting 126 from 130 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
The number 21 fits into 40 1 times, leaving a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 13794.61
Subtract 21 from 40 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 9:
The number 21 fits into 190 9 times, leaving a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 13794.619
Subtracting 189 from 190 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 10:
10 divided by 21 is 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 13794.619
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 11:
If we divide 100 by 21, we get 4 and a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 13794.61904
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 12:
When dividing 160 by 21, we get 7 with a remainder of 13.
The next digit of our result is 7. 
Result so far: 13794.619047
If we subtract 147 from 160, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 13:
21 can be fit into 130 6 times, resulting in a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 13794.6190476
If we take 126 away from 130, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 14:
The number 21 fits into 40 1 times, leaving a remainder of 19.
The next digit of our result is 1. 
Result so far: 13794.61904761
If we take 21 away from 40, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

After the division, we end up with 13794.61904761 and a remainder of 1.9e-08.