We look at the division of 64616889 by 823 
Let's see how many times 823 fits into 64616889.

On to step 1:
823 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 823

Let's proceed to step 2:
The number 823 fits into 64 0 times, leaving a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Grab the next digit (6) from the dividend, add it to 64, then carry on: 646 / 823

Step 3:
If we divide 646 by 823, we get 0 and a remainder of 646.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 646, we get 646.
Grab the next digit (1) from the dividend, add it to 646, then carry on: 6461 / 823

Step 4:
823 can be fit into 6461 7 times, resulting in a remainder of 700.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 5761 away from 6461, we end up with 700.
Append the next digit (6) from the dividend to 700 and continue with: 7006 / 823

Step 5:
823 can be fit into 7006 8 times, resulting in a remainder of 422.
The number 8 becomes the next digit in our result. 
Result so far: 78.0
Subtract 6584 from 7006 to get 422.
Grab the next digit (8) from the dividend, add it to 422, then carry on: 4228 / 823

Moving on to step 6:
823 goes into 4228 5 times with a remainder of 113.
The next digit of our result is 5. 
Result so far: 785.0
Subtract 4115 from 4228 to get 113.
Fetch the next digit (8) from the dividend, attach it to 113 and continue: 1138 / 823

Going ahead to step 7:
If we divide 1138 by 823, we get 1 and a remainder of 315.
Put 1 as the next digit of the answer. 
Result so far: 7851.0
If we subtract 823 from 1138, we get 315.
Include the next digit (9) from the dividend after 315, then repeat: 3159 / 823

Going ahead to step 8:
When dividing 3159 by 823, we get 3 with a remainder of 690.
Write down 3 as next digit of the result. 
Result so far: 78513.0
Deduct 2469 from 3159 and we're left with 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

Advancing to step 9:
6900 divided by 823 is 8 with a remainder of 316.
Write down 8 as next digit of the result. 
Result so far: 78513.8
If we take 6584 away from 6900, we end up with 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Let's proceed to step 10:
When dividing 3160 by 823, we get 3 with a remainder of 691.
The number 3 becomes the next digit in our result. 
Result so far: 78513.83
If we take 2469 away from 3160, we end up with 691.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6910, and continue the process.

Advancing to step 11:
823 goes into 6910 8 times with a remainder of 326.
Record the quotient 8 as the next digit in the result. 
Result so far: 78513.838
The remainder is 326 after subtracting 6584 from 6910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

On to step 12:
3260 divided by 823 is 3 with a remainder of 791.
Record the quotient 3 as the next digit in the result. 
Result so far: 78513.8383
Subtracting 2469 from 3260 leaves us with 791.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7910, and continue the process.

Going ahead to step 13:
7910 divided by 823 is 9 with a remainder of 503.
Write down 9 as next digit of the result. 
Result so far: 78513.83839
If we subtract 7407 from 7910, we get 503.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

Advancing to step 14:
823 can be fit into 5030 6 times, resulting in a remainder of 92.
Record the quotient 6 as the next digit in the result. 
Result so far: 78513.838396
Subtracting 4938 from 5030 leaves us with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

On to step 15:
The number 823 fits into 920 1 times, leaving a remainder of 97.
Write down 1 as next digit of the result. 
Result so far: 78513.8383961
The remainder is 97 after subtracting 823 from 920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

On to step 16:
823 can be fit into 970 1 times, resulting in a remainder of 147.
Record the quotient 1 as the next digit in the result. 
Result so far: 78513.83839611
Subtracting 823 from 970 leaves us with 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

The final outcome is 78513.83839611, with a leftover of 1.47e-07.