We look at the division of 30519221 by 197 
Let's see how many times 197 fits into 30519221.

On to step 1:
The number 197 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 197

Moving on to step 2:
When dividing 30 by 197, we get 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Take the next digit (5) from the dividend and append it to 30, then repeat: 305 / 197

Going ahead to step 3:
305 divided by 197 is 1 with a remainder of 108.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 108 after subtracting 197 from 305.
Append the next digit (1) from the dividend to 108 and continue with: 1081 / 197

On to step 4:
When dividing 1081 by 197, we get 5 with a remainder of 96.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we subtract 985 from 1081, we get 96.
Take the next digit (9) from the dividend and append it to 96, then repeat: 969 / 197

Advancing to step 5:
The number 197 fits into 969 4 times, leaving a remainder of 181.
The next digit of our result is 4. 
Result so far: 154.0
If we take 788 away from 969, we end up with 181.
Grab the next digit (2) from the dividend, add it to 181, then carry on: 1812 / 197

Going ahead to step 6:
197 can be fit into 1812 9 times, resulting in a remainder of 39.
Write down 9 as next digit of the result. 
Result so far: 1549.0
The remainder is 39 after subtracting 1773 from 1812.
Grab the next digit (2) from the dividend, add it to 39, then carry on: 392 / 197

Let's proceed to step 7:
The number 197 fits into 392 1 times, leaving a remainder of 195.
The number 1 becomes the next digit in our result. 
Result so far: 15491.0
The remainder is 195 after subtracting 197 from 392.
Append the next digit (1) from the dividend to 195 and continue with: 1951 / 197

On to step 8:
If we divide 1951 by 197, we get 9 and a remainder of 178.
The next digit of our result is 9. 
Result so far: 154919.0
Subtracting 1773 from 1951 leaves us with 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Let's proceed to step 9:
The number 197 fits into 1780 9 times, leaving a remainder of 7.
The next digit of our result is 9. 
Result so far: 154919.9
If we take 1773 away from 1780, we end up 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.

Let's proceed to step 10:
The number 197 fits into 70 0 times, leaving a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 154919.9
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 11:
The number 197 fits into 700 3 times, leaving a remainder of 109.
Use 3 as the next digit of our solution. 
Result so far: 154919.903
The remainder is 109 after subtracting 591 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Going ahead to step 12:
197 can be fit into 1090 5 times, resulting in a remainder of 105.
Write down 5 as next digit of the result. 
Result so far: 154919.9035
If we subtract 985 from 1090, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Advancing to step 13:
The number 197 fits into 1050 5 times, leaving a remainder of 65.
The next digit of our result is 5. 
Result so far: 154919.90355
If we take 985 away from 1050, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final result is 154919.90355 with a remainder of 6.5e-05.