801389 ÷ 8 
Our goal is to divide 801389 by 8.

Step 1:
8 divided by 8 is 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 8 from 8 and we're left with 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 8

Step 2:
8 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 10.0
If we subtract 0 from 0, we get 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 8

Advancing to step 3:
1 divided by 8 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 100.0
If we take 0 away from 1, we end up with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 8

Moving on to step 4:
8 goes into 13 1 times with a remainder of 5.
The next digit of our result is 1. 
Result so far: 1001.0
Subtract 8 from 13 to get 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 8

Let's proceed to step 5:
The number 8 fits into 58 7 times, leaving a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 10017.0
Subtract 56 from 58 to get 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 8

Let's proceed to step 6:
If we divide 29 by 8, we get 3 and a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 100173.0
Deduct 24 from 29 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 7:
The number 8 fits into 50 6 times, leaving a remainder of 2.
The next digit of our result is 6. 
Result so far: 100173.6
Subtract 48 from 50 to 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.

Going ahead to step 8:
8 can be fit into 20 2 times, resulting in a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 100173.62
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.

Let's proceed to step 9:
If we divide 40 by 8, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 100173.625
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:
The number 8 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 100173.625
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.

Let's proceed to step 11:
8 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 100173.625
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.

The final outcome is 100173.625, with a leftover of 0.0.