We look at the division of 990378 by 13 
Let's see how many times 13 fits into 990378.

On to step 1:
9 divided by 13 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 13

Going ahead to step 2:
13 goes into 99 7 times with a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 8 after subtracting 91 from 99.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 13

Moving on to step 3:
13 goes into 80 6 times with a remainder of 2.
The next digit of our result is 6. 
Result so far: 76.0
If we subtract 78 from 80, we get 2.
Grab the next digit (3) from the dividend, add it to 2, then carry on: 23 / 13

Going ahead to step 4:
When dividing 23 by 13, we get 1 with a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 761.0
Deduct 13 from 23 and we're left with 10.
Include the next digit (7) from the dividend after 10, then repeat: 107 / 13

On to step 5:
107 divided by 13 is 8 with a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 7618.0
Subtract 104 from 107 to get 3.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 13

Step 6:
38 divided by 13 is 2 with a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 76182.0
Subtract 26 from 38 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 7:
If we divide 120 by 13, we get 9 and a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 76182.9
The remainder is 3 after subtracting 117 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 8:
13 can be fit into 30 2 times, resulting in a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 76182.92
Subtract 26 from 30 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
40 divided by 13 is 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 76182.923
If we subtract 39 from 40, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 10:
10 divided by 13 is 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 76182.923
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 11:
The number 13 fits into 100 7 times, leaving a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 76182.92307
Subtracting 91 from 100 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 12:
13 goes into 90 6 times with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 76182.923076
Deduct 78 from 90 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 13:
13 can be fit into 120 9 times, resulting in a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 76182.9230769
If we subtract 117 from 120, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 14:
13 can be fit into 30 2 times, resulting in a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 76182.92307692
If we subtract 26 from 30, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The quotient of the division is 76182.92307692, and the remainder is 4e-09.