We're dividing 10399390 by 790 
We're looking to find how many times 790 goes into 10399390.

Advancing to step 1:
If we divide 1 by 790, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 790

Let's proceed to step 2:
10 divided by 790 is 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 10 after subtracting 0 from 10.
Append the next digit (3) from the dividend to 10 and continue with: 103 / 790

Let's proceed to step 3:
103 divided by 790 is 0 with a remainder of 103.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 103 leaves us with 103.
Fetch the next digit (9) from the dividend, attach it to 103 and continue: 1039 / 790

Going ahead to step 4:
If we divide 1039 by 790, we get 1 and a remainder of 249.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 790 from 1039, we get 249.
Bring next digit (9) of the dividend behind the 249 and repeat the process: 2499 / 790

Step 5:
790 can be fit into 2499 3 times, resulting in a remainder of 129.
The next digit of our result is 3. 
Result so far: 13.0
Deduct 2370 from 2499 and we're left with 129.
Include the next digit (3) from the dividend after 129, then repeat: 1293 / 790

Advancing to step 6:
1293 divided by 790 is 1 with a remainder of 503.
Use 1 as the next digit of our solution. 
Result so far: 131.0
If we take 790 away from 1293, we end up with 503.
Include the next digit (9) from the dividend after 503, then repeat: 5039 / 790

Step 7:
The number 790 fits into 5039 6 times, leaving a remainder of 299.
The next digit of our result is 6. 
Result so far: 1316.0
The remainder is 299 after subtracting 4740 from 5039.
Bring next digit (0) of the dividend behind the 299 and repeat the process: 2990 / 790

Moving on to step 8:
When dividing 2990 by 790, we get 3 with a remainder of 620.
The number 3 becomes the next digit in our result. 
Result so far: 13163.0
Subtract 2370 from 2990 to get 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Step 9:
790 goes into 6200 7 times with a remainder of 670.
Put 7 as the next digit of the answer. 
Result so far: 13163.7
If we subtract 5530 from 6200, we get 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

Advancing to step 10:
The number 790 fits into 6700 8 times, leaving a remainder of 380.
The next digit of our result is 8. 
Result so far: 13163.78
The remainder is 380 after subtracting 6320 from 6700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Let's proceed to step 11:
3800 divided by 790 is 4 with a remainder of 640.
The number 4 becomes the next digit in our result. 
Result so far: 13163.784
Subtract 3160 from 3800 to get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Moving on to step 12:
6400 divided by 790 is 8 with a remainder of 80.
Write down 8 as next digit of the result. 
Result so far: 13163.7848
The remainder is 80 after subtracting 6320 from 6400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 13:
790 can be fit into 800 1 times, resulting in a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 13163.78481
If we subtract 790 from 800, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 14:
100 divided by 790 is 0 with a remainder of 100.
Write down 0 as next digit of the result. 
Result so far: 13163.78481
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 15:
790 can be fit into 1000 1 times, resulting in a remainder of 210.
The number 1 becomes the next digit in our result. 
Result so far: 13163.7848101
Deduct 790 from 1000 and we're left with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

On to step 16:
When dividing 2100 by 790, we get 2 with a remainder of 520.
The next digit of our result is 2. 
Result so far: 13163.78481012
Deduct 1580 from 2100 and we're left with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

In conclusion, the division gives 13163.78481012 with a balance of 5.2e-07.