12473951 ÷ 800 
We're looking to find how many times 800 goes into 12473951.

Moving on to step 1:
The number 800 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 800

On to step 2:
800 goes into 12 0 times with a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Take the next digit (4) from the dividend and append it to 12, then repeat: 124 / 800

Advancing to step 3:
800 can be fit into 124 0 times, resulting in a remainder of 124.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 124 to get 124.
Fetch the next digit (7) from the dividend, attach it to 124 and continue: 1247 / 800

Step 4:
If we divide 1247 by 800, we get 1 and a remainder of 447.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 800 from 1247 to get 447.
Include the next digit (3) from the dividend after 447, then repeat: 4473 / 800

Moving on to step 5:
If we divide 4473 by 800, we get 5 and a remainder of 473.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
If we take 4000 away from 4473, we end up with 473.
Bring next digit (9) of the dividend behind the 473 and repeat the process: 4739 / 800

On to step 6:
4739 divided by 800 is 5 with a remainder of 739.
Write down 5 as next digit of the result. 
Result so far: 155.0
Subtracting 4000 from 4739 leaves us with 739.
Append the next digit (5) from the dividend to 739 and continue with: 7395 / 800

Going ahead to step 7:
If we divide 7395 by 800, we get 9 and a remainder of 195.
The number 9 becomes the next digit in our result. 
Result so far: 1559.0
Subtracting 7200 from 7395 leaves us with 195.
Fetch the next digit (1) from the dividend, attach it to 195 and continue: 1951 / 800

Moving on to step 8:
When dividing 1951 by 800, we get 2 with a remainder of 351.
The next digit of our result is 2. 
Result so far: 15592.0
If we take 1600 away from 1951, we end up with 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

On to step 9:
When dividing 3510 by 800, we get 4 with a remainder of 310.
Write down 4 as next digit of the result. 
Result so far: 15592.4
If we take 3200 away from 3510, we end up with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Moving on to step 10:
The number 800 fits into 3100 3 times, leaving a remainder of 700.
Use 3 as the next digit of our solution. 
Result so far: 15592.43
Subtracting 2400 from 3100 leaves us with 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Moving on to step 11:
800 can be fit into 7000 8 times, resulting in a remainder of 600.
The number 8 becomes the next digit in our result. 
Result so far: 15592.438
If we subtract 6400 from 7000, we 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.

Going ahead to step 12:
800 can be fit into 6000 7 times, resulting in a remainder of 400.
The number 7 becomes the next digit in our result. 
Result so far: 15592.4387
Subtract 5600 from 6000 to 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.

Let's proceed to step 13:
If we divide 4000 by 800, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 15592.43875
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.

Step 14:
0 divided by 800 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 15592.43875
Subtracting 0 from 0 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.

Going ahead to step 15:
If we divide 0 by 800, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 15592.43875
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.

The final outcome is 15592.43875, with a leftover of 0.0.