We divide 888732 by 21
We're looking to find how many times 21 goes into 888732.

Step 1:
8 divided by 21 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (8) from the dividend to 8 and continue with: 88 / 21

Moving on to step 2:
When dividing 88 by 21, we get 4 with a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 84 from 88 leaves us with 4.
Append the next digit (8) from the dividend to 4 and continue with: 48 / 21

Moving on to step 3:
When dividing 48 by 21, we get 2 with a remainder of 6.
The next digit of our result is 2. 
Result so far: 42.0
Deduct 42 from 48 and we're left with 6.
Grab the next digit (7) from the dividend, add it to 6, then carry on: 67 / 21

Going ahead to step 4:
The number 21 fits into 67 3 times, leaving a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 423.0
The remainder is 4 after subtracting 63 from 67.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 21

Going ahead to step 5:
If we divide 43 by 21, we get 2 and a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 4232.0
If we take 42 away from 43, we end up with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 21

Going ahead to step 6:
21 can be fit into 12 0 times, resulting in a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 42320.0
If we subtract 0 from 12, 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.

On to step 7:
120 divided by 21 is 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 42320.5
If we subtract 105 from 120, we get 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 8:
If we divide 150 by 21, we get 7 and a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 42320.57
If we take 147 away from 150, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 9:
When dividing 30 by 21, we get 1 with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 42320.571
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.

Let's proceed to step 10:
90 divided by 21 is 4 with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 42320.5714
If we take 84 away from 90, we end up 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.

Going ahead to step 11:
60 divided by 21 is 2 with a remainder of 18.
The next digit of our result is 2. 
Result so far: 42320.57142
Deduct 42 from 60 and we're left 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.

Going ahead to step 12:
If we divide 180 by 21, we get 8 and a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 42320.571428
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 13:
21 goes into 120 5 times with a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 42320.5714285
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.

Step 14:
When dividing 150 by 21, we get 7 with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 42320.57142857
Subtracting 147 from 150 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

In conclusion, the division gives 42320.57142857 with a balance of 3e-09.