357021 ÷ 8 
Our goal is to divide 357021 by 8.

Advancing to step 1:
If we divide 3 by 8, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 8

Advancing to step 2:
8 can be fit into 35 4 times, resulting in a remainder of 3.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 3 after subtracting 32 from 35.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 8

Let's proceed to step 3:
When dividing 37 by 8, we get 4 with a remainder of 5.
Record the quotient 4 as the next digit in the result. 
Result so far: 44.0
Subtracting 32 from 37 leaves us with 5.
Grab the next digit (0) from the dividend, add it to 5, then carry on: 50 / 8

Moving on to step 4:
8 can be fit into 50 6 times, resulting in a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 446.0
If we subtract 48 from 50, we get 2.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 8

Step 5:
When dividing 22 by 8, we get 2 with a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 4462.0
Subtract 16 from 22 to get 6.
Append the next digit (1) from the dividend to 6 and continue with: 61 / 8

Going ahead to step 6:
8 goes into 61 7 times with a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 44627.0
Subtract 56 from 61 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 7:
The number 8 fits into 50 6 times, leaving a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 44627.6
If we subtract 48 from 50, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
The number 8 fits into 20 2 times, leaving a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 44627.62
The remainder is 4 after subtracting 16 from 20.
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:
The number 8 fits into 40 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 44627.625
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.

On to step 10:
If we divide 0 by 8, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 44627.625
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.

Going ahead to step 11:
0 divided by 8 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 44627.625
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.

The final result is 44627.625 with a remainder of 0.0.