644618 ÷ 83 
We're looking to find how many times 83 goes into 644618.

Going ahead to step 1:
83 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 83

On to step 2:
When dividing 64 by 83, we get 0 with a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Append the next digit (4) from the dividend to 64 and continue with: 644 / 83

Going ahead to step 3:
83 goes into 644 7 times with a remainder of 63.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 581 from 644, we get 63.
Include the next digit (6) from the dividend after 63, then repeat: 636 / 83

Advancing to step 4:
636 divided by 83 is 7 with a remainder of 55.
The number 7 becomes the next digit in our result. 
Result so far: 77.0
Subtract 581 from 636 to get 55.
Include the next digit (1) from the dividend after 55, then repeat: 551 / 83

Moving on to step 5:
83 can be fit into 551 6 times, resulting in a remainder of 53.
Record the quotient 6 as the next digit in the result. 
Result so far: 776.0
Deduct 498 from 551 and we're left with 53.
Fetch the next digit (8) from the dividend, attach it to 53 and continue: 538 / 83

Step 6:
The number 83 fits into 538 6 times, leaving a remainder of 40.
Use 6 as the next digit of our solution. 
Result so far: 7766.0
If we subtract 498 from 538, 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.

Advancing to step 7:
83 can be fit into 400 4 times, resulting in a remainder of 68.
The next digit of our result is 4. 
Result so far: 7766.4
If we take 332 away from 400, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 8:
83 goes into 680 8 times with a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 7766.48
Subtracting 664 from 680 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 9:
When dividing 160 by 83, we get 1 with a remainder of 77.
Put 1 as the next digit of the answer. 
Result so far: 7766.481
Subtracting 83 from 160 leaves us with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Moving on to step 10:
If we divide 770 by 83, we get 9 and a remainder of 23.
The next digit of our result is 9. 
Result so far: 7766.4819
Deduct 747 from 770 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 11:
230 divided by 83 is 2 with a remainder of 64.
Record the quotient 2 as the next digit in the result. 
Result so far: 7766.48192
Subtract 166 from 230 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 12:
83 goes into 640 7 times with a remainder of 59.
Write down 7 as next digit of the result. 
Result so far: 7766.481927
Subtract 581 from 640 to get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Let's proceed to step 13:
If we divide 590 by 83, we get 7 and a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 7766.4819277
Subtract 581 from 590 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The quotient of the division is 7766.4819277, and the remainder is 9e-08.