We look at the division of 741450 by 21 
We want to figure out the number of times 741450 can be divided by 21.

On to step 1:
When dividing 7 by 21, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 21

Moving on to step 2:
If we divide 74 by 21, we get 3 and a remainder of 11.
The next digit of our result is 3. 
Result so far: 3.0
If we take 63 away from 74, we end up with 11.
Fetch the next digit (1) from the dividend, attach it to 11 and continue: 111 / 21

Step 3:
21 goes into 111 5 times with a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 35.0
If we subtract 105 from 111, we get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 21

Advancing to step 4:
The number 21 fits into 64 3 times, leaving a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 353.0
If we subtract 63 from 64, we get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 21

Advancing to step 5:
21 goes into 15 0 times with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 3530.0
If we subtract 0 from 15, we get 15.
Bring next digit (0) of the dividend behind the 15 and repeat the process: 150 / 21

Advancing to step 6:
When dividing 150 by 21, we get 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 35307.0
The remainder is 3 after subtracting 147 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 7:
The number 21 fits into 30 1 times, leaving a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 35307.1
The remainder is 9 after subtracting 21 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 8:
21 can be fit into 90 4 times, resulting in a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 35307.14
Subtracting 84 from 90 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 9:
21 goes into 60 2 times with a remainder of 18.
The next digit of our result is 2. 
Result so far: 35307.142
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 10:
21 can be fit into 180 8 times, resulting in a remainder of 12.
The next digit of our result is 8. 
Result so far: 35307.1428
Subtracting 168 from 180 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 11:
21 can be fit into 120 5 times, resulting in a remainder of 15.
The next digit of our result is 5. 
Result so far: 35307.14285
Subtract 105 from 120 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 12:
If we divide 150 by 21, we get 7 and a remainder of 3.
The next digit of our result is 7. 
Result so far: 35307.142857
Subtracting 147 from 150 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 13:
If we divide 30 by 21, we get 1 and a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 35307.1428571
If we take 21 away from 30, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 14:
90 divided by 21 is 4 with a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 35307.14285714
Subtract 84 from 90 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final outcome is 35307.14285714, with a leftover of 6e-09.