We look at the division of 15402362 by 390 
We want to figure out the number of times 15402362 can be divided by 390.

Moving on to step 1:
390 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.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 390

Let's proceed to step 2:
If we divide 15 by 390, we get 0 and a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Include the next digit (4) from the dividend after 15, then repeat: 154 / 390

Let's proceed to step 3:
If we divide 154 by 390, we get 0 and a remainder of 154.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 154 and we're left with 154.
Append the next digit (0) from the dividend to 154 and continue with: 1540 / 390

On to step 4:
1540 divided by 390 is 3 with a remainder of 370.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 1170 from 1540 to get 370.
Include the next digit (2) from the dividend after 370, then repeat: 3702 / 390

Going ahead to step 5:
The number 390 fits into 3702 9 times, leaving a remainder of 192.
Use 9 as the next digit of our solution. 
Result so far: 39.0
If we take 3510 away from 3702, we end up with 192.
Fetch the next digit (3) from the dividend, attach it to 192 and continue: 1923 / 390

Going ahead to step 6:
If we divide 1923 by 390, we get 4 and a remainder of 363.
Put 4 as the next digit of the answer. 
Result so far: 394.0
The remainder is 363 after subtracting 1560 from 1923.
Include the next digit (6) from the dividend after 363, then repeat: 3636 / 390

Advancing to step 7:
When dividing 3636 by 390, we get 9 with a remainder of 126.
The number 9 becomes the next digit in our result. 
Result so far: 3949.0
Subtract 3510 from 3636 to get 126.
Append the next digit (2) from the dividend to 126 and continue with: 1262 / 390

Let's proceed to step 8:
390 goes into 1262 3 times with a remainder of 92.
Use 3 as the next digit of our solution. 
Result so far: 39493.0
Subtract 1170 from 1262 to get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Step 9:
920 divided by 390 is 2 with a remainder of 140.
Record the quotient 2 as the next digit in the result. 
Result so far: 39493.2
If we subtract 780 from 920, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 10:
When dividing 1400 by 390, we get 3 with a remainder of 230.
Use 3 as the next digit of our solution. 
Result so far: 39493.23
Subtract 1170 from 1400 to get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Going ahead to step 11:
The number 390 fits into 2300 5 times, leaving a remainder of 350.
Record the quotient 5 as the next digit in the result. 
Result so far: 39493.235
If we subtract 1950 from 2300, we get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Step 12:
3500 divided by 390 is 8 with a remainder of 380.
Use 8 as the next digit of our solution. 
Result so far: 39493.2358
The remainder is 380 after subtracting 3120 from 3500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

On to step 13:
390 can be fit into 3800 9 times, resulting in a remainder of 290.
The next digit of our result is 9. 
Result so far: 39493.23589
Subtract 3510 from 3800 to get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

On to step 14:
When dividing 2900 by 390, we get 7 with a remainder of 170.
The number 7 becomes the next digit in our result. 
Result so far: 39493.235897
The remainder is 170 after subtracting 2730 from 2900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 15:
1700 divided by 390 is 4 with a remainder of 140.
Record the quotient 4 as the next digit in the result. 
Result so far: 39493.2358974
Subtracting 1560 from 1700 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 16:
1400 divided by 390 is 3 with a remainder of 230.
Use 3 as the next digit of our solution. 
Result so far: 39493.23589743
Subtract 1170 from 1400 to get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

The final result is 39493.23589743 with a remainder of 2.3e-07.