We're dividing 17777399 by 807 
Our goal is to divide 17777399 by 807.

Advancing to step 1:
If we divide 1 by 807, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 807

On to step 2:
807 can be fit into 17 0 times, resulting in a remainder of 17.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 17 and we're left with 17.
Fetch the next digit (7) from the dividend, attach it to 17 and continue: 177 / 807

Going ahead to step 3:
The number 807 fits into 177 0 times, leaving a remainder of 177.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 177 after subtracting 0 from 177.
Include the next digit (7) from the dividend after 177, then repeat: 1777 / 807

On to step 4:
807 goes into 1777 2 times with a remainder of 163.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 163 after subtracting 1614 from 1777.
Include the next digit (7) from the dividend after 163, then repeat: 1637 / 807

Advancing to step 5:
If we divide 1637 by 807, we get 2 and a remainder of 23.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
The remainder is 23 after subtracting 1614 from 1637.
Take the next digit (3) from the dividend and append it to 23, then repeat: 233 / 807

Step 6:
807 goes into 233 0 times with a remainder of 233.
Record the quotient 0 as the next digit in the result. 
Result so far: 220.0
If we subtract 0 from 233, we get 233.
Take the next digit (9) from the dividend and append it to 233, then repeat: 2339 / 807

Going ahead to step 7:
2339 divided by 807 is 2 with a remainder of 725.
Write down 2 as next digit of the result. 
Result so far: 2202.0
The remainder is 725 after subtracting 1614 from 2339.
Grab the next digit (9) from the dividend, add it to 725, then carry on: 7259 / 807

Going ahead to step 8:
807 goes into 7259 8 times with a remainder of 803.
Put 8 as the next digit of the answer. 
Result so far: 22028.0
Deduct 6456 from 7259 and we're left with 803.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8030, and continue the process.

Advancing to step 9:
When dividing 8030 by 807, we get 9 with a remainder of 767.
Record the quotient 9 as the next digit in the result. 
Result so far: 22028.9
Deduct 7263 from 8030 and we're left with 767.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7670, and continue the process.

Going ahead to step 10:
7670 divided by 807 is 9 with a remainder of 407.
The number 9 becomes the next digit in our result. 
Result so far: 22028.99
The remainder is 407 after subtracting 7263 from 7670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4070, and continue the process.

After the division, we end up with 22028.99 and a remainder of 0.407.