6909543 divided by 80 
We want to figure out the number of times 6909543 can be divided by 80.

Moving on to step 1:
The number 80 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 80

On to step 2:
When dividing 69 by 80, we get 0 with a remainder of 69.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 69 and we're left with 69.
Grab the next digit (0) from the dividend, add it to 69, then carry on: 690 / 80

Moving on to step 3:
80 can be fit into 690 8 times, resulting in a remainder of 50.
The next digit of our result is 8. 
Result so far: 8.0
Subtracting 640 from 690 leaves us with 50.
Include the next digit (9) from the dividend after 50, then repeat: 509 / 80

Advancing to step 4:
The number 80 fits into 509 6 times, leaving a remainder of 29.
Put 6 as the next digit of the answer. 
Result so far: 86.0
Deduct 480 from 509 and we're left with 29.
Bring next digit (5) of the dividend behind the 29 and repeat the process: 295 / 80

Going ahead to step 5:
295 divided by 80 is 3 with a remainder of 55.
The number 3 becomes the next digit in our result. 
Result so far: 863.0
The remainder is 55 after subtracting 240 from 295.
Take the next digit (4) from the dividend and append it to 55, then repeat: 554 / 80

On to step 6:
When dividing 554 by 80, we get 6 with a remainder of 74.
Put 6 as the next digit of the answer. 
Result so far: 8636.0
If we take 480 away from 554, we end up with 74.
Take the next digit (3) from the dividend and append it to 74, then repeat: 743 / 80

Let's proceed to step 7:
743 divided by 80 is 9 with a remainder of 23.
Write down 9 as next digit of the result. 
Result so far: 86369.0
The remainder is 23 after subtracting 720 from 743.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 8:
The number 80 fits into 230 2 times, leaving a remainder of 70.
Use 2 as the next digit of our solution. 
Result so far: 86369.2
If we subtract 160 from 230, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 9:
When dividing 700 by 80, we get 8 with a remainder of 60.
The next digit of our result is 8. 
Result so far: 86369.28
Subtracting 640 from 700 leaves us 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.

Step 10:
When dividing 600 by 80, we get 7 with a remainder of 40.
Record the quotient 7 as the next digit in the result. 
Result so far: 86369.287
Subtracting 560 from 600 leaves us with 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:
When dividing 400 by 80, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 86369.2875
If we take 400 away from 400, 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 12:
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: 86369.2875
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.

Let's proceed to step 13:
If we divide 0 by 80, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 86369.2875
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.

Our division results in 86369.2875 with a remaining 0.0.