52455103 divided by 42 
We want to divide 52455103 by 42.

Moving on to step 1:
If we divide 5 by 42, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 42

Going ahead to step 2:
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: 1.0
Deduct 42 from 52 and we're left with 10.
Append the next digit (4) from the dividend to 10 and continue with: 104 / 42

Advancing to step 3:
104 divided by 42 is 2 with a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 20 after subtracting 84 from 104.
Include the next digit (5) from the dividend after 20, then repeat: 205 / 42

Going ahead to step 4:
42 can be fit into 205 4 times, resulting in a remainder of 37.
The number 4 becomes the next digit in our result. 
Result so far: 124.0
If we take 168 away from 205, we end up with 37.
Include the next digit (5) from the dividend after 37, then repeat: 375 / 42

Advancing to step 5:
The number 42 fits into 375 8 times, leaving a remainder of 39.
Record the quotient 8 as the next digit in the result. 
Result so far: 1248.0
Deduct 336 from 375 and we're left with 39.
Append the next digit (1) from the dividend to 39 and continue with: 391 / 42

On to step 6:
If we divide 391 by 42, we get 9 and a remainder of 13.
Record the quotient 9 as the next digit in the result. 
Result so far: 12489.0
If we subtract 378 from 391, we get 13.
Append the next digit (0) from the dividend to 13 and continue with: 130 / 42

Moving on to step 7:
42 can be fit into 130 3 times, resulting in a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 124893.0
The remainder is 4 after subtracting 126 from 130.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 42

Advancing to step 8:
The number 42 fits into 43 1 times, leaving a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1248931.0
The remainder is 1 after subtracting 42 from 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 9:
10 divided by 42 is 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 1248931.0
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
The number 42 fits into 100 2 times, leaving a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 1248931.02
Deduct 84 from 100 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 11:
When dividing 160 by 42, we get 3 with a remainder of 34.
Write down 3 as next digit of the result. 
Result so far: 1248931.023
Deduct 126 from 160 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 12:
If we divide 340 by 42, we get 8 and a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 1248931.0238
Deduct 336 from 340 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 13:
40 divided by 42 is 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 1248931.0238
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 14:
If we divide 400 by 42, we get 9 and a remainder of 22.
Put 9 as the next digit of the answer. 
Result so far: 1248931.023809
Subtract 378 from 400 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 15:
If we divide 220 by 42, we get 5 and a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 1248931.0238095
The remainder is 10 after subtracting 210 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 16:
The number 42 fits into 100 2 times, leaving a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 1248931.02380952
Deduct 84 from 100 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 1248931.02380952 and a remainder of 1.6e-08.