71580460 divided by 800 
We want to figure out the number of times 71580460 can be divided by 800.

Step 1:
If we divide 7 by 800, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 800

Step 2:
800 goes into 71 0 times with a remainder of 71.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 71 after subtracting 0 from 71.
Fetch the next digit (5) from the dividend, attach it to 71 and continue: 715 / 800

On to step 3:
If we divide 715 by 800, we get 0 and a remainder of 715.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 715, we get 715.
Grab the next digit (8) from the dividend, add it to 715, then carry on: 7158 / 800

Let's proceed to step 4:
7158 divided by 800 is 8 with a remainder of 758.
The next digit of our result is 8. 
Result so far: 8.0
If we take 6400 away from 7158, we end up with 758.
Fetch the next digit (0) from the dividend, attach it to 758 and continue: 7580 / 800

Advancing to step 5:
If we divide 7580 by 800, we get 9 and a remainder of 380.
The next digit of our result is 9. 
Result so far: 89.0
The remainder is 380 after subtracting 7200 from 7580.
Append the next digit (4) from the dividend to 380 and continue with: 3804 / 800

Going ahead to step 6:
800 goes into 3804 4 times with a remainder of 604.
Write down 4 as next digit of the result. 
Result so far: 894.0
The remainder is 604 after subtracting 3200 from 3804.
Bring next digit (6) of the dividend behind the 604 and repeat the process: 6046 / 800

Going ahead to step 7:
800 goes into 6046 7 times with a remainder of 446.
Write down 7 as next digit of the result. 
Result so far: 8947.0
Subtract 5600 from 6046 to get 446.
Include the next digit (0) from the dividend after 446, then repeat: 4460 / 800

Advancing to step 8:
800 goes into 4460 5 times with a remainder of 460.
The next digit of our result is 5. 
Result so far: 89475.0
If we take 4000 away from 4460, we end up with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

On to step 9:
When dividing 4600 by 800, we get 5 with a remainder of 600.
Put 5 as the next digit of the answer. 
Result so far: 89475.5
Subtract 4000 from 4600 to get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Let's proceed to step 10:
800 can be fit into 6000 7 times, resulting in a remainder of 400.
Record the quotient 7 as the next digit in the result. 
Result so far: 89475.57
If we subtract 5600 from 6000, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Advancing to step 11:
800 can be fit into 4000 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 89475.575
If we take 4000 away from 4000, 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.

Going ahead to step 12:
800 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 89475.575
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 13:
0 divided by 800 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 89475.575
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.

The final outcome is 89475.575, with a leftover of 0.0.