438141 ÷ 66 
Our goal is to divide 438141 by 66.

Step 1:
When dividing 4 by 66, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 66

Going ahead to step 2:
If we divide 43 by 66, we get 0 and a remainder of 43.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 43 after subtracting 0 from 43.
Take the next digit (8) from the dividend and append it to 43, then repeat: 438 / 66

On to step 3:
The number 66 fits into 438 6 times, leaving a remainder of 42.
Use 6 as the next digit of our solution. 
Result so far: 6.0
The remainder is 42 after subtracting 396 from 438.
Append the next digit (1) from the dividend to 42 and continue with: 421 / 66

Step 4:
When dividing 421 by 66, we get 6 with a remainder of 25.
Put 6 as the next digit of the answer. 
Result so far: 66.0
Subtracting 396 from 421 leaves us with 25.
Take the next digit (4) from the dividend and append it to 25, then repeat: 254 / 66

Let's proceed to step 5:
254 divided by 66 is 3 with a remainder of 56.
Put 3 as the next digit of the answer. 
Result so far: 663.0
Subtracting 198 from 254 leaves us with 56.
Include the next digit (1) from the dividend after 56, then repeat: 561 / 66

Let's proceed to step 6:
When dividing 561 by 66, we get 8 with a remainder of 33.
Record the quotient 8 as the next digit in the result. 
Result so far: 6638.0
Subtract 528 from 561 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 7:
When dividing 330 by 66, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 6638.5
Subtract 330 from 330 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
0 divided by 66 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 6638.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
The number 66 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 6638.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 6638.5 and a remainder of 0.0.