We're dividing 19916159 by 993 
We want to divide 19916159 by 993.

Advancing to step 1:
1 divided by 993 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 993

Let's proceed to step 2:
If we divide 19 by 993, we get 0 and a remainder of 19.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 19, we get 19.
Grab the next digit (9) from the dividend, add it to 19, then carry on: 199 / 993

Step 3:
993 goes into 199 0 times with a remainder of 199.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 199 after subtracting 0 from 199.
Fetch the next digit (1) from the dividend, attach it to 199 and continue: 1991 / 993

On to step 4:
When dividing 1991 by 993, we get 2 with a remainder of 5.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 5 after subtracting 1986 from 1991.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 993

Advancing to step 5:
When dividing 56 by 993, we get 0 with a remainder of 56.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
Subtract 0 from 56 to get 56.
Take the next digit (1) from the dividend and append it to 56, then repeat: 561 / 993

Step 6:
The number 993 fits into 561 0 times, leaving a remainder of 561.
Write down 0 as next digit of the result. 
Result so far: 200.0
Subtract 0 from 561 to get 561.
Fetch the next digit (5) from the dividend, attach it to 561 and continue: 5615 / 993

Moving on to step 7:
When dividing 5615 by 993, we get 5 with a remainder of 650.
Record the quotient 5 as the next digit in the result. 
Result so far: 2005.0
The remainder is 650 after subtracting 4965 from 5615.
Fetch the next digit (9) from the dividend, attach it to 650 and continue: 6509 / 993

Advancing to step 8:
If we divide 6509 by 993, we get 6 and a remainder of 551.
Record the quotient 6 as the next digit in the result. 
Result so far: 20056.0
Deduct 5958 from 6509 and we're left with 551.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5510, and continue the process.

On to step 9:
The number 993 fits into 5510 5 times, leaving a remainder of 545.
Use 5 as the next digit of our solution. 
Result so far: 20056.5
Subtracting 4965 from 5510 leaves us with 545.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

Step 10:
993 can be fit into 5450 5 times, resulting in a remainder of 485.
Record the quotient 5 as the next digit in the result. 
Result so far: 20056.55
Deduct 4965 from 5450 and we're left with 485.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

After the division, we end up with 20056.55 and a remainder of 0.485.