We divide 125709 by 30
We want to divide 125709 by 30.

On to step 1:
The number 30 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 30

Going ahead to step 2:
30 can be fit into 12 0 times, resulting in a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Take the next digit (5) from the dividend and append it to 12, then repeat: 125 / 30

Advancing to step 3:
30 can be fit into 125 4 times, resulting in a remainder of 5.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 120 from 125 to get 5.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 30

Advancing to step 4:
57 divided by 30 is 1 with a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 41.0
If we take 30 away from 57, we end up with 27.
Fetch the next digit (0) from the dividend, attach it to 27 and continue: 270 / 30

On to step 5:
30 can be fit into 270 9 times, resulting in a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 419.0
The remainder is 0 after subtracting 270 from 270.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 30

On to step 6:
30 can be fit into 9 0 times, resulting in a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 4190.0
Deduct 0 from 9 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
If we divide 90 by 30, we get 3 and a remainder of 0.
The next digit of our result is 3. 
Result so far: 4190.3
The remainder is 0 after subtracting 90 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
30 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4190.3
Subtract 0 from 0 to 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.

On to step 9:
If we divide 0 by 30, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 4190.3
Deduct 0 from 0 and we're left 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.

The final outcome is 4190.3, with a leftover of 0.0.