Let's divide 420616 by 18
We want to figure out the number of times 420616 can be divided by 18.

Advancing to step 1:
18 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 18

Moving on to step 2:
42 divided by 18 is 2 with a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 36 from 42 leaves us with 6.
Bring next digit (0) of the dividend behind the 6 and repeat the process: 60 / 18

Step 3:
The number 18 fits into 60 3 times, leaving a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
Subtracting 54 from 60 leaves us with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 18

Let's proceed to step 4:
18 goes into 66 3 times with a remainder of 12.
Record the quotient 3 as the next digit in the result. 
Result so far: 233.0
If we subtract 54 from 66, we get 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 18

On to step 5:
The number 18 fits into 121 6 times, leaving a remainder of 13.
Write down 6 as next digit of the result. 
Result so far: 2336.0
The remainder is 13 after subtracting 108 from 121.
Bring next digit (6) of the dividend behind the 13 and repeat the process: 136 / 18

Step 6:
18 goes into 136 7 times with a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 23367.0
If we subtract 126 from 136, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
18 can be fit into 100 5 times, resulting in a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 23367.5
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
If we divide 100 by 18, we get 5 and a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 23367.55
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 23367.55, and the remainder is 0.01.