We're dividing 644783 by 83 
We're looking to find how many times 83 goes into 644783.

Step 1:
83 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
The remainder is 6 after subtracting 0 from 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 83

On to step 2:
The number 83 fits into 64 0 times, leaving a remainder of 64.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Grab the next digit (4) from the dividend, add it to 64, then carry on: 644 / 83

Going ahead to step 3:
83 goes into 644 7 times with a remainder of 63.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 581 from 644, we get 63.
Fetch the next digit (7) from the dividend, attach it to 63 and continue: 637 / 83

Advancing to step 4:
83 can be fit into 637 7 times, resulting in a remainder of 56.
Write down 7 as next digit of the result. 
Result so far: 77.0
Subtract 581 from 637 to get 56.
Append the next digit (8) from the dividend to 56 and continue with: 568 / 83

Step 5:
83 goes into 568 6 times with a remainder of 70.
Write down 6 as next digit of the result. 
Result so far: 776.0
Deduct 498 from 568 and we're left with 70.
Include the next digit (3) from the dividend after 70, then repeat: 703 / 83

Moving on to step 6:
The number 83 fits into 703 8 times, leaving a remainder of 39.
Put 8 as the next digit of the answer. 
Result so far: 7768.0
Deduct 664 from 703 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 7:
390 divided by 83 is 4 with a remainder of 58.
The number 4 becomes the next digit in our result. 
Result so far: 7768.4
Subtract 332 from 390 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 8:
The number 83 fits into 580 6 times, leaving a remainder of 82.
Use 6 as the next digit of our solution. 
Result so far: 7768.46
Subtracting 498 from 580 leaves us 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.

Step 9:
When dividing 820 by 83, we get 9 with a remainder of 73.
Use 9 as the next digit of our solution. 
Result so far: 7768.469
The remainder is 73 after subtracting 747 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

On to step 10:
The number 83 fits into 730 8 times, leaving a remainder of 66.
Put 8 as the next digit of the answer. 
Result so far: 7768.4698
Subtract 664 from 730 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 11:
The number 83 fits into 660 7 times, leaving a remainder of 79.
Use 7 as the next digit of our solution. 
Result so far: 7768.46987
Deduct 581 from 660 and we're left with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

On to step 12:
790 divided by 83 is 9 with a remainder of 43.
Put 9 as the next digit of the answer. 
Result so far: 7768.469879
Subtracting 747 from 790 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 13:
If we divide 430 by 83, we get 5 and a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 7768.4698795
The remainder is 15 after subtracting 415 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 14:
The number 83 fits into 150 1 times, leaving a remainder of 67.
The next digit of our result is 1. 
Result so far: 7768.46987951
Deduct 83 from 150 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

The quotient of the division is 7768.46987951, and the remainder is 6.7e-08.