We look at the division of 45108756 by 126 
We're looking to find how many times 126 goes into 45108756.

Step 1:
126 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 126

Let's proceed to step 2:
When dividing 45 by 126, we get 0 with a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Grab the next digit (1) from the dividend, add it to 45, then carry on: 451 / 126

Step 3:
126 goes into 451 3 times with a remainder of 73.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 378 from 451 and we're left with 73.
Append the next digit (0) from the dividend to 73 and continue with: 730 / 126

Let's proceed to step 4:
730 divided by 126 is 5 with a remainder of 100.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
The remainder is 100 after subtracting 630 from 730.
Append the next digit (8) from the dividend to 100 and continue with: 1008 / 126

Moving on to step 5:
When dividing 1008 by 126, we get 8 with a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 358.0
Subtract 1008 from 1008 to get 0.
Fetch the next digit (7) from the dividend, attach it to 0 and continue: 7 / 126

Moving on to step 6:
If we divide 7 by 126, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 3580.0
If we subtract 0 from 7, we get 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 126

Going ahead to step 7:
The number 126 fits into 75 0 times, leaving a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 35800.0
If we subtract 0 from 75, we get 75.
Fetch the next digit (6) from the dividend, attach it to 75 and continue: 756 / 126

Moving on to step 8:
126 goes into 756 6 times with a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 358006.0
Deduct 756 from 756 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.

Moving on to step 9:
When dividing 0 by 126, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 358006.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
The number 126 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 358006.0
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.

After the division, we end up with 358006.0 and a remainder of 0.0.