We're dividing 15921389 by 198 
We want to divide 15921389 by 198.

Going ahead to step 1:
If we divide 1 by 198, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 198

Let's proceed to step 2:
198 goes into 15 0 times with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Fetch the next digit (9) from the dividend, attach it to 15 and continue: 159 / 198

Moving on to step 3:
198 can be fit into 159 0 times, resulting in a remainder of 159.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 159, we end up with 159.
Append the next digit (2) from the dividend to 159 and continue with: 1592 / 198

Advancing to step 4:
When dividing 1592 by 198, we get 8 with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
The remainder is 8 after subtracting 1584 from 1592.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 198

Moving on to step 5:
If we divide 81 by 198, we get 0 and a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 80.0
Subtract 0 from 81 to get 81.
Append the next digit (3) from the dividend to 81 and continue with: 813 / 198

On to step 6:
198 can be fit into 813 4 times, resulting in a remainder of 21.
Write down 4 as next digit of the result. 
Result so far: 804.0
The remainder is 21 after subtracting 792 from 813.
Include the next digit (8) from the dividend after 21, then repeat: 218 / 198

On to step 7:
If we divide 218 by 198, we get 1 and a remainder of 20.
Put 1 as the next digit of the answer. 
Result so far: 8041.0
If we subtract 198 from 218, we get 20.
Include the next digit (9) from the dividend after 20, then repeat: 209 / 198

On to step 8:
When dividing 209 by 198, we get 1 with a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 80411.0
Subtracting 198 from 209 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 9:
198 goes into 110 0 times with a remainder of 110.
The next digit of our result is 0. 
Result so far: 80411.0
Subtracting 0 from 110 leaves us with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Moving on to step 10:
198 can be fit into 1100 5 times, resulting in a remainder of 110.
Use 5 as the next digit of our solution. 
Result so far: 80411.05
If we subtract 990 from 1100, we get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Let's proceed to step 11:
198 can be fit into 1100 5 times, resulting in a remainder of 110.
The next digit of our result is 5. 
Result so far: 80411.055
Subtract 990 from 1100 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

The final outcome is 80411.055, with a leftover of 0.011.