We look at the division of 8868490 by 646 
Let's see how many times 646 fits into 8868490.

Moving on to step 1:
8 divided by 646 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (8) from the dividend, attach it to 8 and continue: 88 / 646

Going ahead to step 2:
88 divided by 646 is 0 with a remainder of 88.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 88, we get 88.
Fetch the next digit (6) from the dividend, attach it to 88 and continue: 886 / 646

Going ahead to step 3:
If we divide 886 by 646, we get 1 and a remainder of 240.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 646 from 886 and we're left with 240.
Grab the next digit (8) from the dividend, add it to 240, then carry on: 2408 / 646

Step 4:
646 goes into 2408 3 times with a remainder of 470.
Put 3 as the next digit of the answer. 
Result so far: 13.0
The remainder is 470 after subtracting 1938 from 2408.
Take the next digit (4) from the dividend and append it to 470, then repeat: 4704 / 646

On to step 5:
646 can be fit into 4704 7 times, resulting in a remainder of 182.
Put 7 as the next digit of the answer. 
Result so far: 137.0
The remainder is 182 after subtracting 4522 from 4704.
Append the next digit (9) from the dividend to 182 and continue with: 1829 / 646

On to step 6:
1829 divided by 646 is 2 with a remainder of 537.
The number 2 becomes the next digit in our result. 
Result so far: 1372.0
The remainder is 537 after subtracting 1292 from 1829.
Take the next digit (0) from the dividend and append it to 537, then repeat: 5370 / 646

Step 7:
If we divide 5370 by 646, we get 8 and a remainder of 202.
The number 8 becomes the next digit in our result. 
Result so far: 13728.0
The remainder is 202 after subtracting 5168 from 5370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

On to step 8:
2020 divided by 646 is 3 with a remainder of 82.
Write down 3 as next digit of the result. 
Result so far: 13728.3
Deduct 1938 from 2020 and we're left with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 9:
646 can be fit into 820 1 times, resulting in a remainder of 174.
The number 1 becomes the next digit in our result. 
Result so far: 13728.31
Subtracting 646 from 820 leaves us with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Moving on to step 10:
1740 divided by 646 is 2 with a remainder of 448.
Record the quotient 2 as the next digit in the result. 
Result so far: 13728.312
If we take 1292 away from 1740, we end up with 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Going ahead to step 11:
When dividing 4480 by 646, we get 6 with a remainder of 604.
Write down 6 as next digit of the result. 
Result so far: 13728.3126
Subtracting 3876 from 4480 leaves us with 604.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

Moving on to step 12:
6040 divided by 646 is 9 with a remainder of 226.
Put 9 as the next digit of the answer. 
Result so far: 13728.31269
Subtract 5814 from 6040 to get 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Let's proceed to step 13:
When dividing 2260 by 646, we get 3 with a remainder of 322.
Write down 3 as next digit of the result. 
Result so far: 13728.312693
The remainder is 322 after subtracting 1938 from 2260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Moving on to step 14:
3220 divided by 646 is 4 with a remainder of 636.
Record the quotient 4 as the next digit in the result. 
Result so far: 13728.3126934
The remainder is 636 after subtracting 2584 from 3220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

Moving on to step 15:
646 can be fit into 6360 9 times, resulting in a remainder of 546.
The number 9 becomes the next digit in our result. 
Result so far: 13728.31269349
Subtracting 5814 from 6360 leaves us with 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

The final result is 13728.31269349 with a remainder of 5.46e-07.