We're dividing 621395 by 18 
We're looking to find how many times 18 goes into 621395.

Let's proceed to step 1:
6 divided by 18 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 18

Advancing to step 2:
If we divide 62 by 18, we get 3 and a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 54 from 62 leaves us with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 18

Advancing to step 3:
18 can be fit into 81 4 times, resulting in a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 34.0
The remainder is 9 after subtracting 72 from 81.
Include the next digit (3) from the dividend after 9, then repeat: 93 / 18

Moving on to step 4:
When dividing 93 by 18, we get 5 with a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 345.0
If we subtract 90 from 93, we get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 18

Step 5:
39 divided by 18 is 2 with a remainder of 3.
The number 2 becomes the next digit in our result. 
Result so far: 3452.0
Subtract 36 from 39 to get 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 18

Let's proceed to step 6:
The number 18 fits into 35 1 times, leaving a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 34521.0
If we subtract 18 from 35, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 7:
170 divided by 18 is 9 with a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 34521.9
The remainder is 8 after subtracting 162 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 8:
The number 18 fits into 80 4 times, leaving a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 34521.94
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 9:
80 divided by 18 is 4 with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 34521.944
If we subtract 72 from 80, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The quotient of the division is 34521.944, and the remainder is 0.0008.