We look at the division of 964739 by 21 
Our goal is to divide 964739 by 21.

Step 1:
9 divided by 21 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 21

On to step 2:
The number 21 fits into 96 4 times, leaving a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 84 away from 96, we end up with 12.
Take the next digit (4) from the dividend and append it to 12, then repeat: 124 / 21

Step 3:
If we divide 124 by 21, we get 5 and a remainder of 19.
Put 5 as the next digit of the answer. 
Result so far: 45.0
Subtract 105 from 124 to get 19.
Bring next digit (7) of the dividend behind the 19 and repeat the process: 197 / 21

Step 4:
21 can be fit into 197 9 times, resulting in a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 459.0
Subtracting 189 from 197 leaves us with 8.
Append the next digit (3) from the dividend to 8 and continue with: 83 / 21

Let's proceed to step 5:
When dividing 83 by 21, we get 3 with a remainder of 20.
Use 3 as the next digit of our solution. 
Result so far: 4593.0
Subtracting 63 from 83 leaves us with 20.
Bring next digit (9) of the dividend behind the 20 and repeat the process: 209 / 21

On to step 6:
209 divided by 21 is 9 with a remainder of 20.
Use 9 as the next digit of our solution. 
Result so far: 45939.0
Deduct 189 from 209 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 7:
If we divide 200 by 21, we get 9 and a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 45939.9
If we subtract 189 from 200, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 8:
When dividing 110 by 21, we get 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 45939.95
Subtract 105 from 110 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
The number 21 fits into 50 2 times, leaving a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 45939.952
Deduct 42 from 50 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 10:
When dividing 80 by 21, we get 3 with a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 45939.9523
If we subtract 63 from 80, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 11:
170 divided by 21 is 8 with a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 45939.95238
The remainder is 2 after subtracting 168 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 12:
20 divided by 21 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 45939.95238
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 13:
21 goes into 200 9 times with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 45939.9523809
If we subtract 189 from 200, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 14:
If we divide 110 by 21, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 45939.95238095
If we subtract 105 from 110, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

In conclusion, the division gives 45939.95238095 with a balance of 5e-09.