We look at the division of 76319 by 21 
We're looking to find how many times 21 goes into 76319.

Let's proceed to step 1:
If we divide 7 by 21, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 21

On to step 2:
When dividing 76 by 21, we get 3 with a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 63 from 76 leaves us with 13.
Include the next digit (3) from the dividend after 13, then repeat: 133 / 21

On to step 3:
When dividing 133 by 21, we get 6 with a remainder of 7.
Use 6 as the next digit of our solution. 
Result so far: 36.0
Subtract 126 from 133 to get 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 21

Advancing to step 4:
The number 21 fits into 71 3 times, leaving a remainder of 8.
The number 3 becomes the next digit in our result. 
Result so far: 363.0
Subtracting 63 from 71 leaves us with 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 21

Step 5:
If we divide 89 by 21, we get 4 and a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 3634.0
If we take 84 away from 89, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 6:
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: 3634.2
If we take 42 away from 50, we end up 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 7:
If we divide 80 by 21, we get 3 and a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 3634.23
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.

Advancing to step 8:
170 divided by 21 is 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 3634.238
Subtract 168 from 170 to 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.

Moving on to step 9:
The number 21 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 3634.238
Subtract 0 from 20 to 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.

Going ahead to step 10:
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: 3634.23809
Deduct 189 from 200 and we're left 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.

Step 11:
21 goes into 110 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 3634.238095
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.

Advancing to step 12:
50 divided by 21 is 2 with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 3634.2380952
If we subtract 42 from 50, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 13:
When dividing 80 by 21, we get 3 with a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 3634.23809523
The remainder is 17 after subtracting 63 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

The quotient of the division is 3634.23809523, and the remainder is 1.7e-08.