We're dividing 67080553 by 645 
We're looking to find how many times 645 goes into 67080553.

On to step 1:
645 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 645

On to step 2:
67 divided by 645 is 0 with a remainder of 67.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 67 after subtracting 0 from 67.
Fetch the next digit (0) from the dividend, attach it to 67 and continue: 670 / 645

Moving on to step 3:
If we divide 670 by 645, we get 1 and a remainder of 25.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 645 from 670 and we're left with 25.
Append the next digit (8) from the dividend to 25 and continue with: 258 / 645

Going ahead to step 4:
645 can be fit into 258 0 times, resulting in a remainder of 258.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 258 leaves us with 258.
Take the next digit (0) from the dividend and append it to 258, then repeat: 2580 / 645

Moving on to step 5:
645 can be fit into 2580 4 times, resulting in a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 104.0
Subtracting 2580 from 2580 leaves us with 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 645

Step 6:
The number 645 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 1040.0
If we take 0 away from 5, we end up with 5.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 645

On to step 7:
55 divided by 645 is 0 with a remainder of 55.
The number 0 becomes the next digit in our result. 
Result so far: 10400.0
The remainder is 55 after subtracting 0 from 55.
Bring next digit (3) of the dividend behind the 55 and repeat the process: 553 / 645

Moving on to step 8:
645 can be fit into 553 0 times, resulting in a remainder of 553.
Use 0 as the next digit of our solution. 
Result so far: 104000.0
Subtract 0 from 553 to get 553.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5530, and continue the process.

Step 9:
5530 divided by 645 is 8 with a remainder of 370.
Write down 8 as next digit of the result. 
Result so far: 104000.8
If we take 5160 away from 5530, we end up with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Advancing to step 10:
645 can be fit into 3700 5 times, resulting in a remainder of 475.
The number 5 becomes the next digit in our result. 
Result so far: 104000.85
Subtract 3225 from 3700 to get 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Moving on to step 11:
The number 645 fits into 4750 7 times, leaving a remainder of 235.
Put 7 as the next digit of the answer. 
Result so far: 104000.857
If we subtract 4515 from 4750, we get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Going ahead to step 12:
When dividing 2350 by 645, we get 3 with a remainder of 415.
Put 3 as the next digit of the answer. 
Result so far: 104000.8573
Subtract 1935 from 2350 to get 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Going ahead to step 13:
The number 645 fits into 4150 6 times, leaving a remainder of 280.
The number 6 becomes the next digit in our result. 
Result so far: 104000.85736
Subtract 3870 from 4150 to get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Moving on to step 14:
2800 divided by 645 is 4 with a remainder of 220.
Use 4 as the next digit of our solution. 
Result so far: 104000.857364
Deduct 2580 from 2800 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Let's proceed to step 15:
2200 divided by 645 is 3 with a remainder of 265.
Write down 3 as next digit of the result. 
Result so far: 104000.8573643
If we take 1935 away from 2200, we end up with 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Advancing to step 16:
645 can be fit into 2650 4 times, resulting in a remainder of 70.
The next digit of our result is 4. 
Result so far: 104000.85736434
If we take 2580 away from 2650, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

After the division, we end up with 104000.85736434 and a remainder of 7e-08.