We're dividing 385721 by 8 
Let's see how many times 8 fits into 385721.

Advancing to step 1:
8 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 8

Let's proceed to step 2:
38 divided by 8 is 4 with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 32 away from 38, we end up with 6.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 8

Moving on to step 3:
65 divided by 8 is 8 with a remainder of 1.
The number 8 becomes the next digit in our result. 
Result so far: 48.0
Subtract 64 from 65 to get 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 8

Step 4:
When dividing 17 by 8, we get 2 with a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 482.0
Deduct 16 from 17 and we're left with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 8

Advancing to step 5:
12 divided by 8 is 1 with a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 4821.0
Deduct 8 from 12 and we're left with 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 8

Moving on to step 6:
If we divide 41 by 8, we get 5 and a remainder of 1.
Record the quotient 5 as the next digit in the result. 
Result so far: 48215.0
The remainder is 1 after subtracting 40 from 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
If we divide 10 by 8, we get 1 and a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 48215.1
The remainder is 2 after subtracting 8 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
8 goes into 20 2 times with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 48215.12
Subtracting 16 from 20 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
40 divided by 8 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 48215.125
Subtract 40 from 40 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.

Let's proceed to step 10:
8 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 48215.125
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.

Step 11:
When dividing 0 by 8, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 48215.125
Subtracting 0 from 0 leaves us 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 48215.125 with a remainder of 0.0.