We look at the division of 78443703 by 105 
Our goal is to divide 78443703 by 105.

On to step 1:
105 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 105

Let's proceed to step 2:
78 divided by 105 is 0 with a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Append the next digit (4) from the dividend to 78 and continue with: 784 / 105

Step 3:
784 divided by 105 is 7 with a remainder of 49.
The next digit of our result is 7. 
Result so far: 7.0
If we subtract 735 from 784, we get 49.
Take the next digit (4) from the dividend and append it to 49, then repeat: 494 / 105

Let's proceed to step 4:
105 can be fit into 494 4 times, resulting in a remainder of 74.
Record the quotient 4 as the next digit in the result. 
Result so far: 74.0
If we subtract 420 from 494, we get 74.
Fetch the next digit (3) from the dividend, attach it to 74 and continue: 743 / 105

On to step 5:
If we divide 743 by 105, we get 7 and a remainder of 8.
The next digit of our result is 7. 
Result so far: 747.0
If we take 735 away from 743, we end up with 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 105

Moving on to step 6:
87 divided by 105 is 0 with a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 7470.0
The remainder is 87 after subtracting 0 from 87.
Bring next digit (0) of the dividend behind the 87 and repeat the process: 870 / 105

Moving on to step 7:
870 divided by 105 is 8 with a remainder of 30.
The number 8 becomes the next digit in our result. 
Result so far: 74708.0
If we subtract 840 from 870, we get 30.
Take the next digit (3) from the dividend and append it to 30, then repeat: 303 / 105

On to step 8:
303 divided by 105 is 2 with a remainder of 93.
Write down 2 as next digit of the result. 
Result so far: 747082.0
The remainder is 93 after subtracting 210 from 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Step 9:
105 can be fit into 930 8 times, resulting in a remainder of 90.
Record the quotient 8 as the next digit in the result. 
Result so far: 747082.8
If we subtract 840 from 930, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Step 10:
900 divided by 105 is 8 with a remainder of 60.
Put 8 as the next digit of the answer. 
Result so far: 747082.88
Subtract 840 from 900 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The quotient of the division is 747082.88, and the remainder is 0.06.