Let's divide 746490 by 21
We want to figure out the number of times 746490 can be divided by 21.

Moving on to step 1:
21 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 21

Going ahead to step 2:
The number 21 fits into 74 3 times, leaving a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 63 away from 74, we end up with 11.
Include the next digit (6) from the dividend after 11, then repeat: 116 / 21

Let's proceed to step 3:
116 divided by 21 is 5 with a remainder of 11.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
If we subtract 105 from 116, we get 11.
Grab the next digit (4) from the dividend, add it to 11, then carry on: 114 / 21

Going ahead to step 4:
When dividing 114 by 21, we get 5 with a remainder of 9.
Write down 5 as next digit of the result. 
Result so far: 355.0
If we subtract 105 from 114, we get 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 21

Let's proceed to step 5:
21 goes into 99 4 times with a remainder of 15.
The next digit of our result is 4. 
Result so far: 3554.0
Deduct 84 from 99 and we're left with 15.
Take the next digit (0) from the dividend and append it to 15, then repeat: 150 / 21

Moving on to step 6:
The number 21 fits into 150 7 times, leaving a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 35547.0
Subtract 147 from 150 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
21 goes into 30 1 times with a remainder of 9.
The next digit of our result is 1. 
Result so far: 35547.1
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.

Let's proceed to step 8:
21 can be fit into 90 4 times, resulting in a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 35547.14
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.

Let's proceed to step 9:
The number 21 fits into 60 2 times, leaving a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 35547.142
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.

Step 10:
21 goes into 180 8 times with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 35547.1428
Deduct 168 from 180 and we're left 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.

On to step 11:
If we divide 120 by 21, we get 5 and a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 35547.14285
If we subtract 105 from 120, we 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:
21 goes into 150 7 times with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 35547.142857
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.

Advancing to step 13:
The number 21 fits into 30 1 times, leaving a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 35547.1428571
Subtract 21 from 30 to get 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:
When dividing 90 by 21, we get 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 35547.14285714
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 quotient of the division is 35547.14285714, and the remainder is 6e-09.