We look at the division of 351240 by 19 
Let's see how many times 19 fits into 351240.

On to step 1:
19 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 19

Going ahead to step 2:
35 divided by 19 is 1 with a remainder of 16.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 19 from 35, we get 16.
Append the next digit (1) from the dividend to 16 and continue with: 161 / 19

On to step 3:
19 goes into 161 8 times with a remainder of 9.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
Subtract 152 from 161 to get 9.
Append the next digit (2) from the dividend to 9 and continue with: 92 / 19

Step 4:
19 goes into 92 4 times with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 184.0
Subtract 76 from 92 to get 16.
Append the next digit (4) from the dividend to 16 and continue with: 164 / 19

Going ahead to step 5:
164 divided by 19 is 8 with a remainder of 12.
The next digit of our result is 8. 
Result so far: 1848.0
Subtracting 152 from 164 leaves us with 12.
Grab the next digit (0) from the dividend, add it to 12, then carry on: 120 / 19

Let's proceed to step 6:
120 divided by 19 is 6 with a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 18486.0
The remainder is 6 after subtracting 114 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
The number 19 fits into 60 3 times, leaving a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 18486.3
Subtracting 57 from 60 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 8:
30 divided by 19 is 1 with a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 18486.31
The remainder is 11 after subtracting 19 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 9:
19 goes into 110 5 times with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 18486.315
Deduct 95 from 110 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 10:
The number 19 fits into 150 7 times, leaving a remainder of 17.
Write down 7 as next digit of the result. 
Result so far: 18486.3157
Subtract 133 from 150 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 11:
170 divided by 19 is 8 with a remainder of 18.
Put 8 as the next digit of the answer. 
Result so far: 18486.31578
If we take 152 away from 170, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 12:
When dividing 180 by 19, we get 9 with a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 18486.315789
Subtracting 171 from 180 leaves us 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.

Going ahead to step 13:
90 divided by 19 is 4 with a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 18486.3157894
The remainder is 14 after subtracting 76 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 14:
19 can be fit into 140 7 times, resulting in a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 18486.31578947
The remainder is 7 after subtracting 133 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The quotient of the division is 18486.31578947, and the remainder is 7e-09.