Let's divide 55083707 by 645
We want to divide 55083707 by 645.

Going ahead to step 1:
645 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 645

Moving on to step 2:
645 goes into 55 0 times with a remainder of 55.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 55 after subtracting 0 from 55.
Fetch the next digit (0) from the dividend, attach it to 55 and continue: 550 / 645

On to step 3:
If we divide 550 by 645, we get 0 and a remainder of 550.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 550 leaves us with 550.
Include the next digit (8) from the dividend after 550, then repeat: 5508 / 645

Moving on to step 4:
645 goes into 5508 8 times with a remainder of 348.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we subtract 5160 from 5508, we get 348.
Bring next digit (3) of the dividend behind the 348 and repeat the process: 3483 / 645

Let's proceed to step 5:
If we divide 3483 by 645, we get 5 and a remainder of 258.
Put 5 as the next digit of the answer. 
Result so far: 85.0
Subtract 3225 from 3483 to get 258.
Include the next digit (7) from the dividend after 258, then repeat: 2587 / 645

Step 6:
If we divide 2587 by 645, we get 4 and a remainder of 7.
The number 4 becomes the next digit in our result. 
Result so far: 854.0
Subtracting 2580 from 2587 leaves us with 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 645

Going ahead to step 7:
645 goes into 70 0 times with a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 8540.0
Deduct 0 from 70 and we're left with 70.
Bring next digit (7) of the dividend behind the 70 and repeat the process: 707 / 645

Advancing to step 8:
645 can be fit into 707 1 times, resulting in a remainder of 62.
Use 1 as the next digit of our solution. 
Result so far: 85401.0
The remainder is 62 after subtracting 645 from 707.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 9:
645 can be fit into 620 0 times, resulting in a remainder of 620.
Put 0 as the next digit of the answer. 
Result so far: 85401.0
Subtract 0 from 620 to get 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Step 10:
645 can be fit into 6200 9 times, resulting in a remainder of 395.
Put 9 as the next digit of the answer. 
Result so far: 85401.09
The remainder is 395 after subtracting 5805 from 6200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Advancing to step 11:
645 goes into 3950 6 times with a remainder of 80.
Write down 6 as next digit of the result. 
Result so far: 85401.096
Subtracting 3870 from 3950 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 12:
645 goes into 800 1 times with a remainder of 155.
Record the quotient 1 as the next digit in the result. 
Result so far: 85401.0961
Deduct 645 from 800 and we're left with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

On to step 13:
645 can be fit into 1550 2 times, resulting in a remainder of 260.
The number 2 becomes the next digit in our result. 
Result so far: 85401.09612
If we subtract 1290 from 1550, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

On to step 14:
The number 645 fits into 2600 4 times, leaving a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 85401.096124
If we take 2580 away from 2600, 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.

Going ahead to step 15:
645 can be fit into 200 0 times, resulting in a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 85401.096124
Deduct 0 from 200 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 16:
When dividing 2000 by 645, we get 3 with a remainder of 65.
The number 3 becomes the next digit in our result. 
Result so far: 85401.09612403
The remainder is 65 after subtracting 1935 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final outcome is 85401.09612403, with a leftover of 6.5e-08.