Let's divide 643344 by 18
We want to figure out the number of times 643344 can be divided by 18.

Let's proceed to step 1:
If we divide 6 by 18, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 18

Step 2:
The number 18 fits into 64 3 times, leaving a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 54 from 64, we get 10.
Fetch the next digit (3) from the dividend, attach it to 10 and continue: 103 / 18

Advancing to step 3:
103 divided by 18 is 5 with a remainder of 13.
Use 5 as the next digit of our solution. 
Result so far: 35.0
Subtracting 90 from 103 leaves us with 13.
Append the next digit (3) from the dividend to 13 and continue with: 133 / 18

Let's proceed to step 4:
18 goes into 133 7 times with a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 357.0
Deduct 126 from 133 and we're left with 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 18

Step 5:
When dividing 74 by 18, we get 4 with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 3574.0
The remainder is 2 after subtracting 72 from 74.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 18

Let's proceed to step 6:
24 divided by 18 is 1 with a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 35741.0
If we subtract 18 from 24, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
60 divided by 18 is 3 with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 35741.3
The remainder is 6 after subtracting 54 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 8:
18 goes into 60 3 times with a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 35741.33
Deduct 54 from 60 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final result is 35741.33 with a remainder of 0.006.