We're dividing 21171933 by 715 
We want to figure out the number of times 21171933 can be divided by 715.

Advancing to step 1:
When dividing 2 by 715, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 715

Moving on to step 2:
If we divide 21 by 715, we get 0 and a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Take the next digit (1) from the dividend and append it to 21, then repeat: 211 / 715

Step 3:
When dividing 211 by 715, we get 0 with a remainder of 211.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 211 after subtracting 0 from 211.
Include the next digit (7) from the dividend after 211, then repeat: 2117 / 715

Step 4:
2117 divided by 715 is 2 with a remainder of 687.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 687 after subtracting 1430 from 2117.
Grab the next digit (1) from the dividend, add it to 687, then carry on: 6871 / 715

Let's proceed to step 5:
715 goes into 6871 9 times with a remainder of 436.
Use 9 as the next digit of our solution. 
Result so far: 29.0
Subtracting 6435 from 6871 leaves us with 436.
Bring next digit (9) of the dividend behind the 436 and repeat the process: 4369 / 715

Going ahead to step 6:
715 can be fit into 4369 6 times, resulting in a remainder of 79.
Put 6 as the next digit of the answer. 
Result so far: 296.0
If we subtract 4290 from 4369, we get 79.
Bring next digit (3) of the dividend behind the 79 and repeat the process: 793 / 715

Step 7:
793 divided by 715 is 1 with a remainder of 78.
Write down 1 as next digit of the result. 
Result so far: 2961.0
Subtracting 715 from 793 leaves us with 78.
Append the next digit (3) from the dividend to 78 and continue with: 783 / 715

Moving on to step 8:
The number 715 fits into 783 1 times, leaving a remainder of 68.
The next digit of our result is 1. 
Result so far: 29611.0
If we take 715 away from 783, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 9:
680 divided by 715 is 0 with a remainder of 680.
The number 0 becomes the next digit in our result. 
Result so far: 29611.0
If we subtract 0 from 680, we get 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Step 10:
If we divide 6800 by 715, we get 9 and a remainder of 365.
Use 9 as the next digit of our solution. 
Result so far: 29611.09
Subtract 6435 from 6800 to get 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

On to step 11:
715 can be fit into 3650 5 times, resulting in a remainder of 75.
The next digit of our result is 5. 
Result so far: 29611.095
Deduct 3575 from 3650 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 12:
The number 715 fits into 750 1 times, leaving a remainder of 35.
Put 1 as the next digit of the answer. 
Result so far: 29611.0951
If we take 715 away from 750, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 13:
If we divide 350 by 715, we get 0 and a remainder of 350.
Use 0 as the next digit of our solution. 
Result so far: 29611.0951
If we subtract 0 from 350, we get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Advancing to step 14:
When dividing 3500 by 715, we get 4 with a remainder of 640.
The number 4 becomes the next digit in our result. 
Result so far: 29611.095104
Deduct 2860 from 3500 and we're left with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Step 15:
715 can be fit into 6400 8 times, resulting in a remainder of 680.
Record the quotient 8 as the next digit in the result. 
Result so far: 29611.0951048
Subtracting 5720 from 6400 leaves us with 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Let's proceed to step 16:
715 goes into 6800 9 times with a remainder of 365.
Use 9 as the next digit of our solution. 
Result so far: 29611.09510489
If we take 6435 away from 6800, we end up with 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

The final result is 29611.09510489 with a remainder of 3.65e-07.