We look at the division of 21506926 by 558 
We're looking to find how many times 558 goes into 21506926.

On to step 1:
If we divide 2 by 558, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 558

Going ahead to step 2:
The number 558 fits into 21 0 times, leaving a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Append the next digit (5) from the dividend to 21 and continue with: 215 / 558

Advancing to step 3:
When dividing 215 by 558, we get 0 with a remainder of 215.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 215 and we're left with 215.
Append the next digit (0) from the dividend to 215 and continue with: 2150 / 558

On to step 4:
If we divide 2150 by 558, we get 3 and a remainder of 476.
The next digit of our result is 3. 
Result so far: 3.0
If we take 1674 away from 2150, we end up with 476.
Bring next digit (6) of the dividend behind the 476 and repeat the process: 4766 / 558

Advancing to step 5:
When dividing 4766 by 558, we get 8 with a remainder of 302.
Put 8 as the next digit of the answer. 
Result so far: 38.0
Deduct 4464 from 4766 and we're left with 302.
Include the next digit (9) from the dividend after 302, then repeat: 3029 / 558

Let's proceed to step 6:
558 goes into 3029 5 times with a remainder of 239.
The next digit of our result is 5. 
Result so far: 385.0
If we subtract 2790 from 3029, we get 239.
Bring next digit (2) of the dividend behind the 239 and repeat the process: 2392 / 558

Going ahead to step 7:
558 goes into 2392 4 times with a remainder of 160.
Use 4 as the next digit of our solution. 
Result so far: 3854.0
Deduct 2232 from 2392 and we're left with 160.
Bring next digit (6) of the dividend behind the 160 and repeat the process: 1606 / 558

Going ahead to step 8:
558 can be fit into 1606 2 times, resulting in a remainder of 490.
Use 2 as the next digit of our solution. 
Result so far: 38542.0
Subtracting 1116 from 1606 leaves us with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Step 9:
When dividing 4900 by 558, we get 8 with a remainder of 436.
The number 8 becomes the next digit in our result. 
Result so far: 38542.8
Subtracting 4464 from 4900 leaves us with 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

Going ahead to step 10:
When dividing 4360 by 558, we get 7 with a remainder of 454.
Use 7 as the next digit of our solution. 
Result so far: 38542.87
Deduct 3906 from 4360 and we're left with 454.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4540, and continue the process.

Step 11:
The number 558 fits into 4540 8 times, leaving a remainder of 76.
Use 8 as the next digit of our solution. 
Result so far: 38542.878
The remainder is 76 after subtracting 4464 from 4540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 12:
The number 558 fits into 760 1 times, leaving a remainder of 202.
The next digit of our result is 1. 
Result so far: 38542.8781
If we subtract 558 from 760, we get 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Moving on to step 13:
558 can be fit into 2020 3 times, resulting in a remainder of 346.
The number 3 becomes the next digit in our result. 
Result so far: 38542.87813
Subtracting 1674 from 2020 leaves us with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Step 14:
558 goes into 3460 6 times with a remainder of 112.
Record the quotient 6 as the next digit in the result. 
Result so far: 38542.878136
Subtract 3348 from 3460 to get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Let's proceed to step 15:
If we divide 1120 by 558, we get 2 and a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 38542.8781362
If we subtract 1116 from 1120, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 16:
When dividing 40 by 558, we get 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 38542.8781362
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final result is 38542.8781362 with a remainder of 4e-08.