We're dividing 8375346 by 645 
Our goal is to divide 8375346 by 645.

Advancing to step 1:
645 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 645

Step 2:
If we divide 83 by 645, we get 0 and a remainder of 83.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 83 leaves us with 83.
Bring next digit (7) of the dividend behind the 83 and repeat the process: 837 / 645

Going ahead to step 3:
The number 645 fits into 837 1 times, leaving a remainder of 192.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 645 from 837, we get 192.
Include the next digit (5) from the dividend after 192, then repeat: 1925 / 645

Let's proceed to step 4:
1925 divided by 645 is 2 with a remainder of 635.
Write down 2 as next digit of the result. 
Result so far: 12.0
Deduct 1290 from 1925 and we're left with 635.
Append the next digit (3) from the dividend to 635 and continue with: 6353 / 645

Going ahead to step 5:
The number 645 fits into 6353 9 times, leaving a remainder of 548.
Write down 9 as next digit of the result. 
Result so far: 129.0
Subtracting 5805 from 6353 leaves us with 548.
Fetch the next digit (4) from the dividend, attach it to 548 and continue: 5484 / 645

Going ahead to step 6:
645 can be fit into 5484 8 times, resulting in a remainder of 324.
Record the quotient 8 as the next digit in the result. 
Result so far: 1298.0
If we take 5160 away from 5484, we end up with 324.
Bring next digit (6) of the dividend behind the 324 and repeat the process: 3246 / 645

Let's proceed to step 7:
If we divide 3246 by 645, we get 5 and a remainder of 21.
The next digit of our result is 5. 
Result so far: 12985.0
If we subtract 3225 from 3246, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 8:
210 divided by 645 is 0 with a remainder of 210.
Put 0 as the next digit of the answer. 
Result so far: 12985.0
If we subtract 0 from 210, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Going ahead to step 9:
When dividing 2100 by 645, we get 3 with a remainder of 165.
The next digit of our result is 3. 
Result so far: 12985.03
The remainder is 165 after subtracting 1935 from 2100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

On to step 10:
When dividing 1650 by 645, we get 2 with a remainder of 360.
Use 2 as the next digit of our solution. 
Result so far: 12985.032
If we subtract 1290 from 1650, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 11:
645 can be fit into 3600 5 times, resulting in a remainder of 375.
The number 5 becomes the next digit in our result. 
Result so far: 12985.0325
If we subtract 3225 from 3600, we get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Step 12:
The number 645 fits into 3750 5 times, leaving a remainder of 525.
The number 5 becomes the next digit in our result. 
Result so far: 12985.03255
The remainder is 525 after subtracting 3225 from 3750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

The quotient of the division is 12985.03255, and the remainder is 0.000525.