We divide 558194 by 21
We want to figure out the number of times 558194 can be divided by 21.

Moving on to step 1:
When dividing 5 by 21, we get 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 21

On to step 2:
21 goes into 55 2 times with a remainder of 13.
The next digit of our result is 2. 
Result so far: 2.0
If we take 42 away from 55, we end up with 13.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 21

Let's proceed to step 3:
If we divide 138 by 21, we get 6 and a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
Deduct 126 from 138 and we're left with 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 21

Advancing to step 4:
The number 21 fits into 121 5 times, leaving a remainder of 16.
The number 5 becomes the next digit in our result. 
Result so far: 265.0
The remainder is 16 after subtracting 105 from 121.
Bring next digit (9) of the dividend behind the 16 and repeat the process: 169 / 21

Advancing to step 5:
169 divided by 21 is 8 with a remainder of 1.
Write down 8 as next digit of the result. 
Result so far: 2658.0
Subtract 168 from 169 to get 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 21

Moving on to step 6:
21 goes into 14 0 times with a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 26580.0
If we take 0 away from 14, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 7:
21 goes into 140 6 times with a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 26580.6
Deduct 126 from 140 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 8:
21 can be fit into 140 6 times, resulting in a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 26580.66
Subtract 126 from 140 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Our division results in 26580.66 with a remaining 0.014.