We're dividing 268398 by 645 
Let's see how many times 645 fits into 268398.

On to step 1:
When dividing 2 by 645, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (6) from the dividend after 2, then repeat: 26 / 645

Advancing to step 2:
645 can be fit into 26 0 times, resulting in a remainder of 26.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 26, we get 26.
Take the next digit (8) from the dividend and append it to 26, then repeat: 268 / 645

On to step 3:
When dividing 268 by 645, we get 0 with a remainder of 268.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 268 after subtracting 0 from 268.
Append the next digit (3) from the dividend to 268 and continue with: 2683 / 645

Step 4:
The number 645 fits into 2683 4 times, leaving a remainder of 103.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 2580 from 2683, we get 103.
Fetch the next digit (9) from the dividend, attach it to 103 and continue: 1039 / 645

Going ahead to step 5:
1039 divided by 645 is 1 with a remainder of 394.
Write down 1 as next digit of the result. 
Result so far: 41.0
If we take 645 away from 1039, we end up with 394.
Include the next digit (8) from the dividend after 394, then repeat: 3948 / 645

Going ahead to step 6:
When dividing 3948 by 645, we get 6 with a remainder of 78.
Use 6 as the next digit of our solution. 
Result so far: 416.0
Deduct 3870 from 3948 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 7:
The number 645 fits into 780 1 times, leaving a remainder of 135.
Record the quotient 1 as the next digit in the result. 
Result so far: 416.1
Deduct 645 from 780 and we're left with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Going ahead to step 8:
645 can be fit into 1350 2 times, resulting in a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 416.12
Subtracting 1290 from 1350 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 9:
If we divide 600 by 645, we get 0 and a remainder of 600.
The number 0 becomes the next digit in our result. 
Result so far: 416.12
The remainder is 600 after subtracting 0 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Going ahead to step 10:
When dividing 6000 by 645, we get 9 with a remainder of 195.
The next digit of our result is 9. 
Result so far: 416.1209
Subtracting 5805 from 6000 leaves us with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Going ahead to step 11:
When dividing 1950 by 645, we get 3 with a remainder of 15.
Record the quotient 3 as the next digit in the result. 
Result so far: 416.12093
Subtracting 1935 from 1950 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 12:
150 divided by 645 is 0 with a remainder of 150.
Write down 0 as next digit of the result. 
Result so far: 416.12093
Subtracting 0 from 150 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 13:
1500 divided by 645 is 2 with a remainder of 210.
Write down 2 as next digit of the result. 
Result so far: 416.1209302
If we subtract 1290 from 1500, 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.

Moving on to step 14:
645 goes into 2100 3 times with a remainder of 165.
Use 3 as the next digit of our solution. 
Result so far: 416.12093023
Deduct 1935 from 2100 and we're left with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

The quotient of the division is 416.12093023, and the remainder is 1.65e-07.