We're dividing 351516 by 18 
Let's see how many times 18 fits into 351516.

Advancing to step 1:
3 divided by 18 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 18

Moving on to step 2:
When dividing 35 by 18, we get 1 with a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 18 from 35 and we're left with 17.
Append the next digit (1) from the dividend to 17 and continue with: 171 / 18

On to step 3:
171 divided by 18 is 9 with a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
If we subtract 162 from 171, we get 9.
Bring next digit (5) of the dividend behind the 9 and repeat the process: 95 / 18

On to step 4:
18 goes into 95 5 times with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 195.0
Subtract 90 from 95 to get 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 18

Going ahead to step 5:
51 divided by 18 is 2 with a remainder of 15.
Put 2 as the next digit of the answer. 
Result so far: 1952.0
Subtract 36 from 51 to get 15.
Append the next digit (6) from the dividend to 15 and continue with: 156 / 18

Advancing to step 6:
If we divide 156 by 18, we get 8 and a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 19528.0
The remainder is 12 after subtracting 144 from 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 7:
When dividing 120 by 18, we get 6 with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 19528.6
If we subtract 108 from 120, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 8:
If we divide 120 by 18, we get 6 and a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 19528.66
Subtracting 108 from 120 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 19528.66, with a leftover of 0.012.