Let's divide 553215 by 80
We want to figure out the number of times 553215 can be divided by 80.

Moving on to step 1:
If we divide 5 by 80, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 80

Going ahead to step 2:
When dividing 55 by 80, we get 0 with a remainder of 55.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 55 and we're left with 55.
Take the next digit (3) from the dividend and append it to 55, then repeat: 553 / 80

Going ahead to step 3:
80 can be fit into 553 6 times, resulting in a remainder of 73.
The next digit of our result is 6. 
Result so far: 6.0
If we subtract 480 from 553, we get 73.
Take the next digit (2) from the dividend and append it to 73, then repeat: 732 / 80

Going ahead to step 4:
80 can be fit into 732 9 times, resulting in a remainder of 12.
Put 9 as the next digit of the answer. 
Result so far: 69.0
The remainder is 12 after subtracting 720 from 732.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 80

Moving on to step 5:
80 goes into 121 1 times with a remainder of 41.
The next digit of our result is 1. 
Result so far: 691.0
The remainder is 41 after subtracting 80 from 121.
Take the next digit (5) from the dividend and append it to 41, then repeat: 415 / 80

On to step 6:
The number 80 fits into 415 5 times, leaving a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 6915.0
Deduct 400 from 415 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 7:
80 can be fit into 150 1 times, resulting in a remainder of 70.
The next digit of our result is 1. 
Result so far: 6915.1
If we subtract 80 from 150, 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.

Let's proceed to step 8:
When dividing 700 by 80, we get 8 with a remainder of 60.
The number 8 becomes the next digit in our result. 
Result so far: 6915.18
The remainder is 60 after subtracting 640 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 9:
80 can be fit into 600 7 times, resulting in a remainder of 40.
The number 7 becomes the next digit in our result. 
Result so far: 6915.187
If we subtract 560 from 600, we 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.

Step 10:
If we divide 400 by 80, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 6915.1875
If we subtract 400 from 400, 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 11:
When dividing 0 by 80, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 6915.1875
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.

Let's proceed to step 12:
If we divide 0 by 80, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 6915.1875
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.

The final result is 6915.1875 with a remainder of 0.0.