45555207 ÷ 807 
We're looking to find how many times 807 goes into 45555207.

Step 1:
807 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 807

Moving on to step 2:
The number 807 fits into 45 0 times, leaving a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 45 and we're left with 45.
Bring next digit (5) of the dividend behind the 45 and repeat the process: 455 / 807

Advancing to step 3:
The number 807 fits into 455 0 times, leaving a remainder of 455.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 455 after subtracting 0 from 455.
Fetch the next digit (5) from the dividend, attach it to 455 and continue: 4555 / 807

Moving on to step 4:
If we divide 4555 by 807, we get 5 and a remainder of 520.
Write down 5 as next digit of the result. 
Result so far: 5.0
Deduct 4035 from 4555 and we're left with 520.
Grab the next digit (5) from the dividend, add it to 520, then carry on: 5205 / 807

Going ahead to step 5:
If we divide 5205 by 807, we get 6 and a remainder of 363.
Put 6 as the next digit of the answer. 
Result so far: 56.0
Subtract 4842 from 5205 to get 363.
Bring next digit (2) of the dividend behind the 363 and repeat the process: 3632 / 807

On to step 6:
When dividing 3632 by 807, we get 4 with a remainder of 404.
The next digit of our result is 4. 
Result so far: 564.0
If we take 3228 away from 3632, we end up with 404.
Include the next digit (0) from the dividend after 404, then repeat: 4040 / 807

On to step 7:
When dividing 4040 by 807, we get 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 5645.0
If we subtract 4035 from 4040, we get 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 807

Advancing to step 8:
If we divide 57 by 807, we get 0 and a remainder of 57.
Record the quotient 0 as the next digit in the result. 
Result so far: 56450.0
Deduct 0 from 57 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 9:
When dividing 570 by 807, we get 0 with a remainder of 570.
Use 0 as the next digit of our solution. 
Result so far: 56450.0
If we take 0 away from 570, we end up with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Let's proceed to step 10:
When dividing 5700 by 807, we get 7 with a remainder of 51.
Record the quotient 7 as the next digit in the result. 
Result so far: 56450.07
If we subtract 5649 from 5700, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Let's proceed to step 11:
807 can be fit into 510 0 times, resulting in a remainder of 510.
The number 0 becomes the next digit in our result. 
Result so far: 56450.07
Subtracting 0 from 510 leaves us with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

On to step 12:
5100 divided by 807 is 6 with a remainder of 258.
Put 6 as the next digit of the answer. 
Result so far: 56450.0706
The remainder is 258 after subtracting 4842 from 5100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

Step 13:
If we divide 2580 by 807, we get 3 and a remainder of 159.
The number 3 becomes the next digit in our result. 
Result so far: 56450.07063
Subtracting 2421 from 2580 leaves us with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Going ahead to step 14:
807 can be fit into 1590 1 times, resulting in a remainder of 783.
Use 1 as the next digit of our solution. 
Result so far: 56450.070631
Subtracting 807 from 1590 leaves us with 783.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7830, and continue the process.

Moving on to step 15:
7830 divided by 807 is 9 with a remainder of 567.
The number 9 becomes the next digit in our result. 
Result so far: 56450.0706319
If we subtract 7263 from 7830, we get 567.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5670, and continue the process.

On to step 16:
807 goes into 5670 7 times with a remainder of 21.
The number 7 becomes the next digit in our result. 
Result so far: 56450.07063197
The remainder is 21 after subtracting 5649 from 5670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

The final outcome is 56450.07063197, with a leftover of 2.1e-08.