80545399 divided by 515 
We want to figure out the number of times 80545399 can be divided by 515.

On to step 1:
If we divide 8 by 515, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 515

Going ahead to step 2:
When dividing 80 by 515, we get 0 with a remainder of 80.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 80 to get 80.
Append the next digit (5) from the dividend to 80 and continue with: 805 / 515

Moving on to step 3:
805 divided by 515 is 1 with a remainder of 290.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 515 from 805 leaves us with 290.
Fetch the next digit (4) from the dividend, attach it to 290 and continue: 2904 / 515

Moving on to step 4:
When dividing 2904 by 515, we get 5 with a remainder of 329.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
If we take 2575 away from 2904, we end up with 329.
Take the next digit (5) from the dividend and append it to 329, then repeat: 3295 / 515

Let's proceed to step 5:
3295 divided by 515 is 6 with a remainder of 205.
The number 6 becomes the next digit in our result. 
Result so far: 156.0
Deduct 3090 from 3295 and we're left with 205.
Include the next digit (3) from the dividend after 205, then repeat: 2053 / 515

Advancing to step 6:
515 goes into 2053 3 times with a remainder of 508.
Record the quotient 3 as the next digit in the result. 
Result so far: 1563.0
Subtracting 1545 from 2053 leaves us with 508.
Take the next digit (9) from the dividend and append it to 508, then repeat: 5089 / 515

Moving on to step 7:
When dividing 5089 by 515, we get 9 with a remainder of 454.
Put 9 as the next digit of the answer. 
Result so far: 15639.0
If we take 4635 away from 5089, we end up with 454.
Take the next digit (9) from the dividend and append it to 454, then repeat: 4549 / 515

Step 8:
When dividing 4549 by 515, we get 8 with a remainder of 429.
The next digit of our result is 8. 
Result so far: 156398.0
If we take 4120 away from 4549, we end up with 429.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4290, and continue the process.

Going ahead to step 9:
If we divide 4290 by 515, we get 8 and a remainder of 170.
Record the quotient 8 as the next digit in the result. 
Result so far: 156398.8
Deduct 4120 from 4290 and we're left with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 10:
515 can be fit into 1700 3 times, resulting in a remainder of 155.
The next digit of our result is 3. 
Result so far: 156398.83
Subtracting 1545 from 1700 leaves us with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Advancing to step 11:
The number 515 fits into 1550 3 times, leaving a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 156398.833
If we subtract 1545 from 1550, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The quotient of the division is 156398.833, and the remainder is 0.0005.