We're dividing 21175788 by 742 
We want to figure out the number of times 21175788 can be divided by 742.

Moving on to step 1:
The number 742 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 742

Moving on to step 2:
When dividing 21 by 742, we get 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Append the next digit (1) from the dividend to 21 and continue with: 211 / 742

Step 3:
When dividing 211 by 742, we get 0 with a remainder of 211.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 211 and we're left with 211.
Include the next digit (7) from the dividend after 211, then repeat: 2117 / 742

Step 4:
742 goes into 2117 2 times with a remainder of 633.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 1484 from 2117 and we're left with 633.
Take the next digit (5) from the dividend and append it to 633, then repeat: 6335 / 742

Going ahead to step 5:
6335 divided by 742 is 8 with a remainder of 399.
The next digit of our result is 8. 
Result so far: 28.0
Subtracting 5936 from 6335 leaves us with 399.
Include the next digit (7) from the dividend after 399, then repeat: 3997 / 742

Let's proceed to step 6:
742 can be fit into 3997 5 times, resulting in a remainder of 287.
The next digit of our result is 5. 
Result so far: 285.0
Subtracting 3710 from 3997 leaves us with 287.
Append the next digit (8) from the dividend to 287 and continue with: 2878 / 742

Moving on to step 7:
2878 divided by 742 is 3 with a remainder of 652.
The next digit of our result is 3. 
Result so far: 2853.0
If we subtract 2226 from 2878, we get 652.
Bring next digit (8) of the dividend behind the 652 and repeat the process: 6528 / 742

Moving on to step 8:
When dividing 6528 by 742, we get 8 with a remainder of 592.
Record the quotient 8 as the next digit in the result. 
Result so far: 28538.0
Deduct 5936 from 6528 and we're left with 592.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

Going ahead to step 9:
If we divide 5920 by 742, we get 7 and a remainder of 726.
The number 7 becomes the next digit in our result. 
Result so far: 28538.7
Subtract 5194 from 5920 to get 726.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7260, and continue the process.

Moving on to step 10:
If we divide 7260 by 742, we get 9 and a remainder of 582.
Record the quotient 9 as the next digit in the result. 
Result so far: 28538.79
The remainder is 582 after subtracting 6678 from 7260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

Moving on to step 11:
The number 742 fits into 5820 7 times, leaving a remainder of 626.
Put 7 as the next digit of the answer. 
Result so far: 28538.797
If we subtract 5194 from 5820, we get 626.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6260, and continue the process.

On to step 12:
742 goes into 6260 8 times with a remainder of 324.
Use 8 as the next digit of our solution. 
Result so far: 28538.7978
Subtracting 5936 from 6260 leaves us with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Step 13:
742 goes into 3240 4 times with a remainder of 272.
The next digit of our result is 4. 
Result so far: 28538.79784
If we subtract 2968 from 3240, we get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Going ahead to step 14:
742 can be fit into 2720 3 times, resulting in a remainder of 494.
The number 3 becomes the next digit in our result. 
Result so far: 28538.797843
The remainder is 494 after subtracting 2226 from 2720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

Advancing to step 15:
4940 divided by 742 is 6 with a remainder of 488.
Write down 6 as next digit of the result. 
Result so far: 28538.7978436
The remainder is 488 after subtracting 4452 from 4940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Moving on to step 16:
If we divide 4880 by 742, we get 6 and a remainder of 428.
Put 6 as the next digit of the answer. 
Result so far: 28538.79784366
Deduct 4452 from 4880 and we're left with 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

In conclusion, the division gives 28538.79784366 with a balance of 4.28e-07.