53105108 ÷ 30 
We're looking to find how many times 30 goes into 53105108.

Advancing to step 1:
30 goes into 5 0 times with 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.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 30

On to step 2:
The number 30 fits into 53 1 times, leaving a remainder of 23.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 30 from 53, we get 23.
Take the next digit (1) from the dividend and append it to 23, then repeat: 231 / 30

Advancing to step 3:
30 goes into 231 7 times with a remainder of 21.
Write down 7 as next digit of the result. 
Result so far: 17.0
Deduct 210 from 231 and we're left with 21.
Include the next digit (0) from the dividend after 21, then repeat: 210 / 30

Advancing to step 4:
When dividing 210 by 30, we get 7 with a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 177.0
Subtract 210 from 210 to get 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 30

On to step 5:
If we divide 5 by 30, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 1770.0
If we subtract 0 from 5, we get 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 30

Going ahead to step 6:
30 goes into 51 1 times with a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 17701.0
Deduct 30 from 51 and we're left with 21.
Append the next digit (0) from the dividend to 21 and continue with: 210 / 30

Let's proceed to step 7:
210 divided by 30 is 7 with a remainder of 0.
The next digit of our result is 7. 
Result so far: 177017.0
The remainder is 0 after subtracting 210 from 210.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 30

Moving on to step 8:
If we divide 8 by 30, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 1770170.0
Subtract 0 from 8 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 9:
30 can be fit into 80 2 times, resulting in a remainder of 20.
The next digit of our result is 2. 
Result so far: 1770170.2
Deduct 60 from 80 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 10:
200 divided by 30 is 6 with a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 1770170.26
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 11:
The number 30 fits into 200 6 times, leaving a remainder of 20.
The next digit of our result is 6. 
Result so far: 1770170.266
The remainder is 20 after subtracting 180 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 1770170.266 with a remainder of 0.002.