Let's divide 645345 by 83
Let's see how many times 83 fits into 645345.

Step 1:
6 divided by 83 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 83

Going ahead to step 2:
When dividing 64 by 83, we get 0 with a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Include the next digit (5) from the dividend after 64, then repeat: 645 / 83

Let's proceed to step 3:
When dividing 645 by 83, we get 7 with a remainder of 64.
The next digit of our result is 7. 
Result so far: 7.0
Subtract 581 from 645 to get 64.
Include the next digit (3) from the dividend after 64, then repeat: 643 / 83

Going ahead to step 4:
83 can be fit into 643 7 times, resulting in a remainder of 62.
Record the quotient 7 as the next digit in the result. 
Result so far: 77.0
Deduct 581 from 643 and we're left with 62.
Take the next digit (4) from the dividend and append it to 62, then repeat: 624 / 83

Let's proceed to step 5:
When dividing 624 by 83, we get 7 with a remainder of 43.
The next digit of our result is 7. 
Result so far: 777.0
Deduct 581 from 624 and we're left with 43.
Grab the next digit (5) from the dividend, add it to 43, then carry on: 435 / 83

Moving on to step 6:
83 can be fit into 435 5 times, resulting in a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 7775.0
If we take 415 away from 435, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 7:
83 can be fit into 200 2 times, resulting in a remainder of 34.
Use 2 as the next digit of our solution. 
Result so far: 7775.2
Subtract 166 from 200 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 8:
If we divide 340 by 83, we get 4 and a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 7775.24
Subtract 332 from 340 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 9:
If we divide 80 by 83, we get 0 and a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 7775.24
Subtract 0 from 80 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 10:
When dividing 800 by 83, we get 9 with a remainder of 53.
Use 9 as the next digit of our solution. 
Result so far: 7775.2409
If we subtract 747 from 800, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 11:
83 can be fit into 530 6 times, resulting in a remainder of 32.
The number 6 becomes the next digit in our result. 
Result so far: 7775.24096
Subtract 498 from 530 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 12:
If we divide 320 by 83, we get 3 and a remainder of 71.
Put 3 as the next digit of the answer. 
Result so far: 7775.240963
Subtracting 249 from 320 leaves us with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Moving on to step 13:
83 can be fit into 710 8 times, resulting in a remainder of 46.
The next digit of our result is 8. 
Result so far: 7775.2409638
If we subtract 664 from 710, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 14:
460 divided by 83 is 5 with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 7775.24096385
Deduct 415 from 460 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

After the division, we end up with 7775.24096385 and a remainder of 4.5e-08.