We look at the division of 6400971 by 819 
We're looking to find how many times 819 goes into 6400971.

Step 1:
6 divided by 819 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 819

Going ahead to step 2:
819 goes into 64 0 times with a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Take the next digit (0) from the dividend and append it to 64, then repeat: 640 / 819

On to step 3:
819 can be fit into 640 0 times, resulting in a remainder of 640.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 640 leaves us with 640.
Include the next digit (0) from the dividend after 640, then repeat: 6400 / 819

Step 4:
When dividing 6400 by 819, we get 7 with a remainder of 667.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtracting 5733 from 6400 leaves us with 667.
Append the next digit (9) from the dividend to 667 and continue with: 6679 / 819

Moving on to step 5:
819 goes into 6679 8 times with a remainder of 127.
Put 8 as the next digit of the answer. 
Result so far: 78.0
Subtracting 6552 from 6679 leaves us with 127.
Fetch the next digit (7) from the dividend, attach it to 127 and continue: 1277 / 819

Step 6:
1277 divided by 819 is 1 with a remainder of 458.
The next digit of our result is 1. 
Result so far: 781.0
Deduct 819 from 1277 and we're left with 458.
Fetch the next digit (1) from the dividend, attach it to 458 and continue: 4581 / 819

Let's proceed to step 7:
If we divide 4581 by 819, we get 5 and a remainder of 486.
Record the quotient 5 as the next digit in the result. 
Result so far: 7815.0
Subtract 4095 from 4581 to get 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Going ahead to step 8:
819 goes into 4860 5 times with a remainder of 765.
Put 5 as the next digit of the answer. 
Result so far: 7815.5
Deduct 4095 from 4860 and we're left with 765.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7650, and continue the process.

Let's proceed to step 9:
819 can be fit into 7650 9 times, resulting in a remainder of 279.
Put 9 as the next digit of the answer. 
Result so far: 7815.59
Subtracting 7371 from 7650 leaves us with 279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

Moving on to step 10:
819 can be fit into 2790 3 times, resulting in a remainder of 333.
Put 3 as the next digit of the answer. 
Result so far: 7815.593
The remainder is 333 after subtracting 2457 from 2790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

Step 11:
3330 divided by 819 is 4 with a remainder of 54.
Use 4 as the next digit of our solution. 
Result so far: 7815.5934
The remainder is 54 after subtracting 3276 from 3330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 12:
When dividing 540 by 819, we get 0 with a remainder of 540.
The next digit of our result is 0. 
Result so far: 7815.5934
Subtracting 0 from 540 leaves us with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Going ahead to step 13:
If we divide 5400 by 819, we get 6 and a remainder of 486.
Record the quotient 6 as the next digit in the result. 
Result so far: 7815.593406
If we subtract 4914 from 5400, we get 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Step 14:
If we divide 4860 by 819, we get 5 and a remainder of 765.
Write down 5 as next digit of the result. 
Result so far: 7815.5934065
The remainder is 765 after subtracting 4095 from 4860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7650, and continue the process.

Step 15:
If we divide 7650 by 819, we get 9 and a remainder of 279.
Put 9 as the next digit of the answer. 
Result so far: 7815.59340659
The remainder is 279 after subtracting 7371 from 7650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

Our division results in 7815.59340659 with a remaining 2.79e-07.