763457 ÷ 21 
We're looking to find how many times 21 goes into 763457.

Let's proceed to step 1:
21 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (6) from the dividend, attach it to 7 and continue: 76 / 21

Let's proceed to step 2:
When dividing 76 by 21, we get 3 with a remainder of 13.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 63 from 76 to get 13.
Grab the next digit (3) from the dividend, add it to 13, then carry on: 133 / 21

Step 3:
21 goes into 133 6 times with a remainder of 7.
Write down 6 as next digit of the result. 
Result so far: 36.0
The remainder is 7 after subtracting 126 from 133.
Append the next digit (4) from the dividend to 7 and continue with: 74 / 21

On to step 4:
The number 21 fits into 74 3 times, leaving a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 363.0
If we take 63 away from 74, we end up with 11.
Grab the next digit (5) from the dividend, add it to 11, then carry on: 115 / 21

Let's proceed to step 5:
115 divided by 21 is 5 with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 3635.0
Subtracting 105 from 115 leaves us with 10.
Include the next digit (7) from the dividend after 10, then repeat: 107 / 21

Step 6:
21 goes into 107 5 times with a remainder of 2.
The number 5 becomes the next digit in our result. 
Result so far: 36355.0
If we take 105 away from 107, we end up with 2.
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 7:
The number 21 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 36355.0
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
When dividing 200 by 21, we get 9 with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 36355.09
If we take 189 away from 200, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 9:
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: 36355.095
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.

Advancing to step 10:
The number 21 fits into 50 2 times, leaving a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 36355.0952
Subtracting 42 from 50 leaves us 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.

Advancing to step 11:
21 can be fit into 80 3 times, resulting in a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 36355.09523
Subtracting 63 from 80 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 12:
21 goes into 170 8 times with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 36355.095238
If we subtract 168 from 170, we get 2.
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 13:
21 can be fit into 20 0 times, resulting in a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 36355.095238
Deduct 0 from 20 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.

Let's proceed to step 14:
21 can be fit into 200 9 times, resulting in a remainder of 11.
The next digit of our result is 9. 
Result so far: 36355.09523809
Subtracting 189 from 200 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

The quotient of the division is 36355.09523809, and the remainder is 1.1e-08.