We look at the division of 20421719 by 403 
We're looking to find how many times 403 goes into 20421719.

Moving on to step 1:
The number 403 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 403

Let's proceed to step 2:
If we divide 20 by 403, we get 0 and a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 20 after subtracting 0 from 20.
Bring next digit (4) of the dividend behind the 20 and repeat the process: 204 / 403

Step 3:
403 goes into 204 0 times with a remainder of 204.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 204 leaves us with 204.
Fetch the next digit (2) from the dividend, attach it to 204 and continue: 2042 / 403

Let's proceed to step 4:
If we divide 2042 by 403, we get 5 and a remainder of 27.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 27 after subtracting 2015 from 2042.
Grab the next digit (1) from the dividend, add it to 27, then carry on: 271 / 403

Moving on to step 5:
The number 403 fits into 271 0 times, leaving a remainder of 271.
Write down 0 as next digit of the result. 
Result so far: 50.0
Subtract 0 from 271 to get 271.
Take the next digit (7) from the dividend and append it to 271, then repeat: 2717 / 403

Advancing to step 6:
403 can be fit into 2717 6 times, resulting in a remainder of 299.
Write down 6 as next digit of the result. 
Result so far: 506.0
The remainder is 299 after subtracting 2418 from 2717.
Take the next digit (1) from the dividend and append it to 299, then repeat: 2991 / 403

Moving on to step 7:
403 can be fit into 2991 7 times, resulting in a remainder of 170.
Write down 7 as next digit of the result. 
Result so far: 5067.0
Subtract 2821 from 2991 to get 170.
Include the next digit (9) from the dividend after 170, then repeat: 1709 / 403

Moving on to step 8:
403 can be fit into 1709 4 times, resulting in a remainder of 97.
The number 4 becomes the next digit in our result. 
Result so far: 50674.0
Subtracting 1612 from 1709 leaves us with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Going ahead to step 9:
When dividing 970 by 403, we get 2 with a remainder of 164.
The next digit of our result is 2. 
Result so far: 50674.2
If we subtract 806 from 970, we get 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

On to step 10:
403 goes into 1640 4 times with a remainder of 28.
Write down 4 as next digit of the result. 
Result so far: 50674.24
The remainder is 28 after subtracting 1612 from 1640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 11:
If we divide 280 by 403, we get 0 and a remainder of 280.
Write down 0 as next digit of the result. 
Result so far: 50674.24
If we subtract 0 from 280, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Going ahead to step 12:
403 goes into 2800 6 times with a remainder of 382.
The next digit of our result is 6. 
Result so far: 50674.2406
Deduct 2418 from 2800 and we're left with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Moving on to step 13:
403 can be fit into 3820 9 times, resulting in a remainder of 193.
Write down 9 as next digit of the result. 
Result so far: 50674.24069
If we subtract 3627 from 3820, we get 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Advancing to step 14:
403 goes into 1930 4 times with a remainder of 318.
The number 4 becomes the next digit in our result. 
Result so far: 50674.240694
Deduct 1612 from 1930 and we're left with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Advancing to step 15:
3180 divided by 403 is 7 with a remainder of 359.
The next digit of our result is 7. 
Result so far: 50674.2406947
The remainder is 359 after subtracting 2821 from 3180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Let's proceed to step 16:
If we divide 3590 by 403, we get 8 and a remainder of 366.
Write down 8 as next digit of the result. 
Result so far: 50674.24069478
Subtract 3224 from 3590 to get 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

After the division, we end up with 50674.24069478 and a remainder of 3.66e-07.