We're dividing 893631 by 21 
We're looking to find how many times 21 goes into 893631.

Advancing to step 1:
When dividing 8 by 21, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 21

Step 2:
The number 21 fits into 89 4 times, leaving a remainder of 5.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 84 away from 89, we end up with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 21

Advancing to step 3:
If we divide 53 by 21, we get 2 and a remainder of 11.
Put 2 as the next digit of the answer. 
Result so far: 42.0
Deduct 42 from 53 and we're left with 11.
Append the next digit (6) from the dividend to 11 and continue with: 116 / 21

Step 4:
116 divided by 21 is 5 with a remainder of 11.
Record the quotient 5 as the next digit in the result. 
Result so far: 425.0
The remainder is 11 after subtracting 105 from 116.
Bring next digit (3) of the dividend behind the 11 and repeat the process: 113 / 21

Let's proceed to step 5:
When dividing 113 by 21, we get 5 with a remainder of 8.
Record the quotient 5 as the next digit in the result. 
Result so far: 4255.0
Deduct 105 from 113 and we're left with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 21

Advancing to step 6:
81 divided by 21 is 3 with a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 42553.0
If we take 63 away from 81, we end up 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 7:
When dividing 180 by 21, we get 8 with a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 42553.8
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.

Let's proceed to step 8:
21 goes into 120 5 times with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 42553.85
If we take 105 away from 120, we end up 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.

Moving on to step 9:
When dividing 150 by 21, we get 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 42553.857
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.

Going ahead to step 10:
21 can be fit into 30 1 times, resulting in a remainder of 9.
The next digit of our result is 1. 
Result so far: 42553.8571
Subtracting 21 from 30 leaves us 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.

Advancing to step 11:
90 divided by 21 is 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 42553.85714
Subtract 84 from 90 to get 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 12:
If we divide 60 by 21, we get 2 and a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 42553.857142
If we take 42 away from 60, we end up 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.

Moving on to step 13:
If we divide 180 by 21, we get 8 and a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 42553.8571428
If we take 168 away from 180, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 14:
21 can be fit into 120 5 times, resulting in a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 42553.85714285
Subtract 105 from 120 to 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.

Our division results in 42553.85714285 with a remaining 1.5e-08.