6851059 ÷ 80 
Let's see how many times 80 fits into 6851059.

Advancing to step 1:
When dividing 6 by 80, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 80

Let's proceed to step 2:
80 goes into 68 0 times with a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 68 to get 68.
Append the next digit (5) from the dividend to 68 and continue with: 685 / 80

On to step 3:
685 divided by 80 is 8 with a remainder of 45.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 640 from 685 to get 45.
Fetch the next digit (1) from the dividend, attach it to 45 and continue: 451 / 80

Step 4:
80 goes into 451 5 times with a remainder of 51.
The number 5 becomes the next digit in our result. 
Result so far: 85.0
The remainder is 51 after subtracting 400 from 451.
Include the next digit (0) from the dividend after 51, then repeat: 510 / 80

Going ahead to step 5:
80 can be fit into 510 6 times, resulting in a remainder of 30.
Record the quotient 6 as the next digit in the result. 
Result so far: 856.0
If we take 480 away from 510, we end up with 30.
Include the next digit (5) from the dividend after 30, then repeat: 305 / 80

On to step 6:
80 goes into 305 3 times with a remainder of 65.
Use 3 as the next digit of our solution. 
Result so far: 8563.0
If we take 240 away from 305, we end up with 65.
Append the next digit (9) from the dividend to 65 and continue with: 659 / 80

Step 7:
659 divided by 80 is 8 with a remainder of 19.
Put 8 as the next digit of the answer. 
Result so far: 85638.0
Deduct 640 from 659 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 8:
80 goes into 190 2 times with a remainder of 30.
The number 2 becomes the next digit in our result. 
Result so far: 85638.2
If we subtract 160 from 190, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 9:
When dividing 300 by 80, we get 3 with a remainder of 60.
Write down 3 as next digit of the result. 
Result so far: 85638.23
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.

Going ahead to step 10:
600 divided by 80 is 7 with a remainder of 40.
The next digit of our result is 7. 
Result so far: 85638.237
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 11:
80 goes into 400 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 85638.2375
Subtracting 400 from 400 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.

Moving on 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: 85638.2375
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.

Step 13:
When dividing 0 by 80, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 85638.2375
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.

In conclusion, the division gives 85638.2375 with a balance of 0.0.