51908912 ÷ 30 
We're looking to find how many times 30 goes into 51908912.

Advancing to step 1:
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: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 30

Going ahead to step 2:
51 divided by 30 is 1 with a remainder of 21.
The next digit of our result is 1. 
Result so far: 1.0
If we take 30 away from 51, we end up with 21.
Append the next digit (9) from the dividend to 21 and continue with: 219 / 30

Moving on to step 3:
When dividing 219 by 30, we get 7 with a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Deduct 210 from 219 and we're left with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 30

Let's proceed to step 4:
30 can be fit into 90 3 times, resulting in a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 173.0
If we subtract 90 from 90, we get 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 30

Going ahead to step 5:
8 divided by 30 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 1730.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 30

Advancing to step 6:
30 can be fit into 89 2 times, resulting in a remainder of 29.
The number 2 becomes the next digit in our result. 
Result so far: 17302.0
Subtracting 60 from 89 leaves us with 29.
Take the next digit (1) from the dividend and append it to 29, then repeat: 291 / 30

Let's proceed to step 7:
30 can be fit into 291 9 times, resulting in a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 173029.0
The remainder is 21 after subtracting 270 from 291.
Grab the next digit (2) from the dividend, add it to 21, then carry on: 212 / 30

Going ahead to step 8:
When dividing 212 by 30, we get 7 with a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 1730297.0
If we take 210 away from 212, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 9:
When dividing 20 by 30, we get 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 1730297.0
The remainder is 20 after subtracting 0 from 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 10:
30 goes into 200 6 times with a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 1730297.06
If we take 180 away from 200, we end up 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.

Moving on to step 11:
When dividing 200 by 30, we get 6 with a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 1730297.066
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The quotient of the division is 1730297.066, and the remainder is 0.002.