55396984 ÷ 20 
Let's see how many times 20 fits into 55396984.

Let's proceed to step 1:
The number 20 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 20

Moving on to step 2:
The number 20 fits into 55 2 times, leaving a remainder of 15.
The next digit of our result is 2. 
Result so far: 2.0
If we take 40 away from 55, we end up with 15.
Grab the next digit (3) from the dividend, add it to 15, then carry on: 153 / 20

Step 3:
20 can be fit into 153 7 times, resulting in a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 27.0
If we subtract 140 from 153, we get 13.
Grab the next digit (9) from the dividend, add it to 13, then carry on: 139 / 20

Let's proceed to step 4:
The number 20 fits into 139 6 times, leaving a remainder of 19.
The next digit of our result is 6. 
Result so far: 276.0
If we take 120 away from 139, we end up with 19.
Take the next digit (6) from the dividend and append it to 19, then repeat: 196 / 20

Advancing to step 5:
The number 20 fits into 196 9 times, leaving a remainder of 16.
The number 9 becomes the next digit in our result. 
Result so far: 2769.0
Deduct 180 from 196 and we're left with 16.
Append the next digit (9) from the dividend to 16 and continue with: 169 / 20

On to step 6:
20 can be fit into 169 8 times, resulting in a remainder of 9.
Use 8 as the next digit of our solution. 
Result so far: 27698.0
If we take 160 away from 169, we end up with 9.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 20

Let's proceed to step 7:
When dividing 98 by 20, we get 4 with a remainder of 18.
The next digit of our result is 4. 
Result so far: 276984.0
Subtract 80 from 98 to get 18.
Take the next digit (4) from the dividend and append it to 18, then repeat: 184 / 20

Going ahead to step 8:
20 can be fit into 184 9 times, resulting in a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 2769849.0
The remainder is 4 after subtracting 180 from 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
If we divide 40 by 20, we get 2 and a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2769849.2
Subtract 40 from 40 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 2769849.2
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 2769849.2
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 2769849.2 with a remainder of 0.0.