We're dividing 856643 by 80 
We're looking to find how many times 80 goes into 856643.

Going ahead to step 1:
80 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 80

Advancing to step 2:
80 goes into 85 1 times with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 5 after subtracting 80 from 85.
Append the next digit (6) from the dividend to 5 and continue with: 56 / 80

Moving on to step 3:
56 divided by 80 is 0 with a remainder of 56.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we take 0 away from 56, we end up with 56.
Fetch the next digit (6) from the dividend, attach it to 56 and continue: 566 / 80

Step 4:
If we divide 566 by 80, we get 7 and a remainder of 6.
The next digit of our result is 7. 
Result so far: 107.0
If we take 560 away from 566, we end up with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 80

Moving on to step 5:
When dividing 64 by 80, we get 0 with a remainder of 64.
The next digit of our result is 0. 
Result so far: 1070.0
Subtracting 0 from 64 leaves us with 64.
Fetch the next digit (3) from the dividend, attach it to 64 and continue: 643 / 80

Step 6:
80 can be fit into 643 8 times, resulting in a remainder of 3.
Use 8 as the next digit of our solution. 
Result so far: 10708.0
If we take 640 away from 643, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
80 can be fit into 30 0 times, resulting in a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 10708.0
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 8:
The number 80 fits into 300 3 times, leaving a remainder of 60.
Put 3 as the next digit of the answer. 
Result so far: 10708.03
If we take 240 away from 300, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 9:
80 can be fit into 600 7 times, resulting in a remainder of 40.
The next digit of our result is 7. 
Result so far: 10708.037
Subtract 560 from 600 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
When dividing 400 by 80, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 10708.0375
Deduct 400 from 400 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 11:
When dividing 0 by 80, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 10708.0375
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.

Advancing to step 12:
The number 80 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 10708.0375
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.

In conclusion, the division gives 10708.0375 with a balance of 0.0.