80653944 ÷ 8 
We want to divide 80653944 by 8.

Advancing to step 1:
8 can be fit into 8 1 times, resulting in a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 8 from 8 and we're left with 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 8

Advancing to step 2:
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: 10.0
The remainder is 0 after subtracting 0 from 0.
Include the next digit (6) from the dividend after 0, then repeat: 6 / 8

Step 3:
8 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 100.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 8

Step 4:
65 divided by 8 is 8 with a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 1008.0
If we subtract 64 from 65, we get 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 8

Advancing to step 5:
When dividing 13 by 8, we get 1 with a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 10081.0
The remainder is 5 after subtracting 8 from 13.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 8

Going ahead to step 6:
59 divided by 8 is 7 with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 100817.0
If we subtract 56 from 59, we get 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 8

Let's proceed to step 7:
8 can be fit into 34 4 times, resulting in a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 1008174.0
If we take 32 away from 34, we end up with 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 8

Going ahead to step 8:
8 can be fit into 24 3 times, resulting in a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 10081743.0
If we subtract 24 from 24, 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.

Step 9:
The number 8 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 10081743.0
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.

Let's proceed to step 10:
0 divided by 8 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 10081743.0
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 outcome is 10081743.0, with a leftover of 0.0.