We divide 351069 by 3
We're looking to find how many times 3 goes into 351069.

Let's proceed to step 1:
3 can be fit into 3 1 times, resulting in a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 0 after subtracting 3 from 3.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 3

Going ahead to step 2:
If we divide 5 by 3, we get 1 and a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtract 3 from 5 to get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 3

Let's proceed to step 3:
3 goes into 21 7 times with a remainder of 0.
The next digit of our result is 7. 
Result so far: 117.0
If we subtract 21 from 21, we get 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 3

Advancing to step 4:
The number 3 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1170.0
The remainder is 0 after subtracting 0 from 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 3

Going ahead to step 5:
The number 3 fits into 6 2 times, leaving a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 11702.0
Subtracting 6 from 6 leaves us with 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 3

Advancing to step 6:
3 goes into 9 3 times with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 117023.0
If we subtract 9 from 9, we 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.

Moving on to step 7:
The number 3 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 117023.0
If we subtract 0 from 0, we 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 8:
3 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 117023.0
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.

The final result is 117023.0 with a remainder of 0.0.