43146103 ÷ 10 
Let's see how many times 10 fits into 43146103.

On to step 1:
When dividing 4 by 10, we get 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 10

Moving on to step 2:
43 divided by 10 is 4 with a remainder of 3.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 40 from 43 and we're left with 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 10

Step 3:
10 can be fit into 31 3 times, resulting in a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 43.0
If we subtract 30 from 31, we get 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 10

On to step 4:
The number 10 fits into 14 1 times, leaving a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 431.0
Subtract 10 from 14 to get 4.
Fetch the next digit (6) from the dividend, attach it to 4 and continue: 46 / 10

Advancing to step 5:
10 goes into 46 4 times with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 4314.0
If we subtract 40 from 46, we get 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 10

Step 6:
If we divide 61 by 10, we get 6 and a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 43146.0
If we subtract 60 from 61, we get 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 10

On to step 7:
10 can be fit into 10 1 times, resulting in a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 431461.0
Subtracting 10 from 10 leaves us with 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 10

Let's proceed to step 8:
10 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 4314610.0
Subtract 0 from 3 to 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 9:
30 divided by 10 is 3 with a remainder of 0.
The next digit of our result is 3. 
Result so far: 4314610.3
Deduct 30 from 30 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
If we divide 0 by 10, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 4314610.3
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 11:
When dividing 0 by 10, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 4314610.3
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 4314610.3, with a leftover of 0.0.