We're dividing 12904207 by 772 
We want to divide 12904207 by 772.

Advancing to step 1:
772 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 772

Step 2:
If we divide 12 by 772, we get 0 and a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Take the next digit (9) from the dividend and append it to 12, then repeat: 129 / 772

Step 3:
The number 772 fits into 129 0 times, leaving a remainder of 129.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 129 and we're left with 129.
Include the next digit (0) from the dividend after 129, then repeat: 1290 / 772

Step 4:
772 goes into 1290 1 times with a remainder of 518.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 772 from 1290 to get 518.
Take the next digit (4) from the dividend and append it to 518, then repeat: 5184 / 772

Going ahead to step 5:
772 can be fit into 5184 6 times, resulting in a remainder of 552.
Write down 6 as next digit of the result. 
Result so far: 16.0
The remainder is 552 after subtracting 4632 from 5184.
Bring next digit (2) of the dividend behind the 552 and repeat the process: 5522 / 772

On to step 6:
772 goes into 5522 7 times with a remainder of 118.
The number 7 becomes the next digit in our result. 
Result so far: 167.0
If we take 5404 away from 5522, we end up with 118.
Fetch the next digit (0) from the dividend, attach it to 118 and continue: 1180 / 772

Going ahead to step 7:
When dividing 1180 by 772, we get 1 with a remainder of 408.
Use 1 as the next digit of our solution. 
Result so far: 1671.0
If we take 772 away from 1180, we end up with 408.
Fetch the next digit (7) from the dividend, attach it to 408 and continue: 4087 / 772

Let's proceed to step 8:
The number 772 fits into 4087 5 times, leaving a remainder of 227.
Use 5 as the next digit of our solution. 
Result so far: 16715.0
Subtracting 3860 from 4087 leaves us with 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

Step 9:
The number 772 fits into 2270 2 times, leaving a remainder of 726.
The next digit of our result is 2. 
Result so far: 16715.2
If we subtract 1544 from 2270, we get 726.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7260, and continue the process.

Advancing to step 10:
The number 772 fits into 7260 9 times, leaving a remainder of 312.
Put 9 as the next digit of the answer. 
Result so far: 16715.29
If we take 6948 away from 7260, we end up with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Step 11:
772 goes into 3120 4 times with a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 16715.294
Subtract 3088 from 3120 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 12:
320 divided by 772 is 0 with a remainder of 320.
Put 0 as the next digit of the answer. 
Result so far: 16715.294
If we take 0 away from 320, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 13:
3200 divided by 772 is 4 with a remainder of 112.
Put 4 as the next digit of the answer. 
Result so far: 16715.29404
Subtract 3088 from 3200 to get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 14:
772 can be fit into 1120 1 times, resulting in a remainder of 348.
The number 1 becomes the next digit in our result. 
Result so far: 16715.294041
If we subtract 772 from 1120, we get 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Step 15:
The number 772 fits into 3480 4 times, leaving a remainder of 392.
The number 4 becomes the next digit in our result. 
Result so far: 16715.2940414
Deduct 3088 from 3480 and we're left with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Let's proceed to step 16:
3920 divided by 772 is 5 with a remainder of 60.
The next digit of our result is 5. 
Result so far: 16715.29404145
If we take 3860 away from 3920, we end up 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.

In conclusion, the division gives 16715.29404145 with a balance of 6e-08.