We're dividing 55125540 by 42 
We want to divide 55125540 by 42.

Moving on to step 1:
5 divided by 42 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 42

Advancing to step 2:
42 can be fit into 55 1 times, resulting in a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 42 from 55 leaves us with 13.
Fetch the next digit (1) from the dividend, attach it to 13 and continue: 131 / 42

Advancing to step 3:
131 divided by 42 is 3 with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we take 126 away from 131, we end up with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 42

Going ahead to step 4:
The number 42 fits into 52 1 times, leaving a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 131.0
If we subtract 42 from 52, we get 10.
Include the next digit (5) from the dividend after 10, then repeat: 105 / 42

Going ahead to step 5:
42 goes into 105 2 times with a remainder of 21.
Put 2 as the next digit of the answer. 
Result so far: 1312.0
The remainder is 21 after subtracting 84 from 105.
Take the next digit (5) from the dividend and append it to 21, then repeat: 215 / 42

On to step 6:
When dividing 215 by 42, we get 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 13125.0
Deduct 210 from 215 and we're left with 5.
Take the next digit (4) from the dividend and append it to 5, then repeat: 54 / 42

On to step 7:
42 goes into 54 1 times with a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 131251.0
Subtract 42 from 54 to get 12.
Append the next digit (0) from the dividend to 12 and continue with: 120 / 42

Going ahead to step 8:
When dividing 120 by 42, we get 2 with a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 1312512.0
The remainder is 36 after subtracting 84 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 9:
When dividing 360 by 42, we get 8 with a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 1312512.8
If we take 336 away from 360, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 10:
42 goes into 240 5 times with a remainder of 30.
The next digit of our result is 5. 
Result so far: 1312512.85
The remainder is 30 after subtracting 210 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 11:
When dividing 300 by 42, we get 7 with a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 1312512.857
Subtract 294 from 300 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 12:
The number 42 fits into 60 1 times, leaving a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 1312512.8571
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 13:
180 divided by 42 is 4 with a remainder of 12.
The number 4 becomes the next digit in our result. 
Result so far: 1312512.85714
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 14:
The number 42 fits into 120 2 times, leaving a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 1312512.857142
Deduct 84 from 120 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 15:
42 goes into 360 8 times with a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 1312512.8571428
The remainder is 24 after subtracting 336 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 16:
42 can be fit into 240 5 times, resulting in a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 1312512.85714285
Subtract 210 from 240 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Our division results in 1312512.85714285 with a remaining 3e-08.