353437 ÷ 30 
We're looking to find how many times 30 goes into 353437.

Moving on to step 1:
When dividing 3 by 30, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 30

Advancing to step 2:
30 can be fit into 35 1 times, resulting in a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 30 away from 35, we end up with 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 30

Moving on to step 3:
30 goes into 53 1 times with a remainder of 23.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we take 30 away from 53, we end up with 23.
Grab the next digit (4) from the dividend, add it to 23, then carry on: 234 / 30

Step 4:
234 divided by 30 is 7 with a remainder of 24.
Put 7 as the next digit of the answer. 
Result so far: 117.0
Subtracting 210 from 234 leaves us with 24.
Grab the next digit (3) from the dividend, add it to 24, then carry on: 243 / 30

Moving on to step 5:
If we divide 243 by 30, we get 8 and a remainder of 3.
Record the quotient 8 as the next digit in the result. 
Result so far: 1178.0
If we take 240 away from 243, we end up with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 30

Moving on to step 6:
The number 30 fits into 37 1 times, leaving a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 11781.0
Subtracting 30 from 37 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
When dividing 70 by 30, we get 2 with a remainder of 10.
The next digit of our result is 2. 
Result so far: 11781.2
If we subtract 60 from 70, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
100 divided by 30 is 3 with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 11781.23
Subtracting 90 from 100 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 9:
30 can be fit into 100 3 times, resulting in a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 11781.233
Deduct 90 from 100 and we're left 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.

The final outcome is 11781.233, with a leftover of 0.001.