We look at the division of 931718 by 21 
We want to figure out the number of times 931718 can be divided by 21.

On to step 1:
21 goes into 9 0 times with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Take the next digit (3) from the dividend and append it to 9, then repeat: 93 / 21

Moving on to step 2:
21 goes into 93 4 times with a remainder of 9.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 84 from 93, we get 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 21

Let's proceed to step 3:
91 divided by 21 is 4 with a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 44.0
If we take 84 away from 91, we end up with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 21

Let's proceed to step 4:
21 can be fit into 77 3 times, resulting in a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 443.0
Deduct 63 from 77 and we're left with 14.
Grab the next digit (1) from the dividend, add it to 14, then carry on: 141 / 21

On to step 5:
141 divided by 21 is 6 with a remainder of 15.
The next digit of our result is 6. 
Result so far: 4436.0
Subtract 126 from 141 to get 15.
Include the next digit (8) from the dividend after 15, then repeat: 158 / 21

Step 6:
If we divide 158 by 21, we get 7 and a remainder of 11.
The number 7 becomes the next digit in our result. 
Result so far: 44367.0
If we take 147 away from 158, 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.

Step 7:
21 goes into 110 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 44367.5
The remainder is 5 after subtracting 105 from 110.
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 8:
50 divided by 21 is 2 with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 44367.52
The remainder is 8 after subtracting 42 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
The number 21 fits into 80 3 times, leaving a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 44367.523
Subtract 63 from 80 to 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.

Moving on to step 10:
170 divided by 21 is 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 44367.5238
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.

On to step 11:
21 goes into 20 0 times with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 44367.5238
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.

On to step 12:
21 can be fit into 200 9 times, resulting in a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 44367.523809
Subtract 189 from 200 to 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.

On to step 13:
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: 44367.5238095
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.

Moving on to step 14:
If we divide 50 by 21, we get 2 and a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 44367.52380952
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.

The final result is 44367.52380952 with a remainder of 8e-09.