Let's divide 8008423 by 490
We want to figure out the number of times 8008423 can be divided by 490.

Going ahead to step 1:
8 divided by 490 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 490

On to step 2:
The number 490 fits into 80 0 times, leaving a remainder of 80.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 80 and we're left with 80.
Include the next digit (0) from the dividend after 80, then repeat: 800 / 490

Moving on to step 3:
When dividing 800 by 490, we get 1 with a remainder of 310.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 490 from 800 leaves us with 310.
Append the next digit (8) from the dividend to 310 and continue with: 3108 / 490

On to step 4:
3108 divided by 490 is 6 with a remainder of 168.
Use 6 as the next digit of our solution. 
Result so far: 16.0
The remainder is 168 after subtracting 2940 from 3108.
Grab the next digit (4) from the dividend, add it to 168, then carry on: 1684 / 490

Moving on to step 5:
490 goes into 1684 3 times with a remainder of 214.
Use 3 as the next digit of our solution. 
Result so far: 163.0
Subtracting 1470 from 1684 leaves us with 214.
Take the next digit (2) from the dividend and append it to 214, then repeat: 2142 / 490

Moving on to step 6:
The number 490 fits into 2142 4 times, leaving a remainder of 182.
Put 4 as the next digit of the answer. 
Result so far: 1634.0
Subtract 1960 from 2142 to get 182.
Append the next digit (3) from the dividend to 182 and continue with: 1823 / 490

Step 7:
1823 divided by 490 is 3 with a remainder of 353.
The next digit of our result is 3. 
Result so far: 16343.0
Subtract 1470 from 1823 to get 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Step 8:
If we divide 3530 by 490, we get 7 and a remainder of 100.
The number 7 becomes the next digit in our result. 
Result so far: 16343.7
Deduct 3430 from 3530 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 9:
When dividing 1000 by 490, we get 2 with a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 16343.72
If we subtract 980 from 1000, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
490 goes into 200 0 times with a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 16343.72
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 11:
490 goes into 2000 4 times with a remainder of 40.
The next digit of our result is 4. 
Result so far: 16343.7204
If we subtract 1960 from 2000, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 12:
If we divide 400 by 490, we get 0 and a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 16343.7204
Subtract 0 from 400 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Advancing to step 13:
4000 divided by 490 is 8 with a remainder of 80.
Record the quotient 8 as the next digit in the result. 
Result so far: 16343.720408
The remainder is 80 after subtracting 3920 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 14:
490 can be fit into 800 1 times, resulting in a remainder of 310.
Record the quotient 1 as the next digit in the result. 
Result so far: 16343.7204081
The remainder is 310 after subtracting 490 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Step 15:
490 can be fit into 3100 6 times, resulting in a remainder of 160.
The next digit of our result is 6. 
Result so far: 16343.72040816
The remainder is 160 after subtracting 2940 from 3100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

The quotient of the division is 16343.72040816, and the remainder is 1.6e-07.