We look at the division of 438161 by 1 
Let's see how many times 1 fits into 438161.

Going ahead to step 1:
If we divide 4 by 1, we get 4 and a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 4 from 4 leaves us with 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 1

Advancing to step 2:
When dividing 3 by 1, we get 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
If we take 3 away from 3, we end up with 0.
Append the next digit (8) from the dividend to 0 and continue with: 8 / 1

Advancing to step 3:
1 can be fit into 8 8 times, resulting in a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 438.0
Subtract 8 from 8 to get 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 1

Step 4:
1 can be fit into 1 1 times, resulting in a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 4381.0
Deduct 1 from 1 and we're left with 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 1

Step 5:
1 goes into 6 6 times with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 43816.0
The remainder is 0 after subtracting 6 from 6.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 1

Advancing to step 6:
If we divide 1 by 1, we get 1 and a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 438161.0
If we take 1 away from 1, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 7:
1 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 438161.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
0 divided by 1 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 438161.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 438161.0 with a remainder of 0.0.