51540600 ÷ 120 
We're looking to find how many times 120 goes into 51540600.

Step 1:
120 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 120

Let's proceed to step 2:
120 goes into 51 0 times with a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Append the next digit (5) from the dividend to 51 and continue with: 515 / 120

On to step 3:
The number 120 fits into 515 4 times, leaving a remainder of 35.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 480 from 515 leaves us with 35.
Bring next digit (4) of the dividend behind the 35 and repeat the process: 354 / 120

On to step 4:
120 can be fit into 354 2 times, resulting in a remainder of 114.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
Subtracting 240 from 354 leaves us with 114.
Fetch the next digit (0) from the dividend, attach it to 114 and continue: 1140 / 120

Advancing to step 5:
If we divide 1140 by 120, we get 9 and a remainder of 60.
Record the quotient 9 as the next digit in the result. 
Result so far: 429.0
Subtract 1080 from 1140 to get 60.
Append the next digit (6) from the dividend to 60 and continue with: 606 / 120

Going ahead to step 6:
When dividing 606 by 120, we get 5 with a remainder of 6.
The number 5 becomes the next digit in our result. 
Result so far: 4295.0
The remainder is 6 after subtracting 600 from 606.
Fetch the next digit (0) from the dividend, attach it to 6 and continue: 60 / 120

Moving on to step 7:
When dividing 60 by 120, we get 0 with a remainder of 60.
The next digit of our result is 0. 
Result so far: 42950.0
Subtracting 0 from 60 leaves us with 60.
Bring next digit (0) of the dividend behind the 60 and repeat the process: 600 / 120

Going ahead to step 8:
The number 120 fits into 600 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 429505.0
If we subtract 600 from 600, 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.

Let's proceed to step 9:
If we divide 0 by 120, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 429505.0
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.

Going ahead to step 10:
When dividing 0 by 120, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 429505.0
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 429505.0 and a remainder of 0.0.