We look at the division of 54664290 by 258 
Let's see how many times 258 fits into 54664290.

Moving on to step 1:
When dividing 5 by 258, we get 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 258

Advancing to step 2:
If we divide 54 by 258, we get 0 and a remainder of 54.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 54 leaves us with 54.
Bring next digit (6) of the dividend behind the 54 and repeat the process: 546 / 258

Let's proceed to step 3:
546 divided by 258 is 2 with a remainder of 30.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 516 away from 546, we end up with 30.
Include the next digit (6) from the dividend after 30, then repeat: 306 / 258

Moving on to step 4:
When dividing 306 by 258, we get 1 with a remainder of 48.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
Subtract 258 from 306 to get 48.
Fetch the next digit (4) from the dividend, attach it to 48 and continue: 484 / 258

Step 5:
When dividing 484 by 258, we get 1 with a remainder of 226.
Write down 1 as next digit of the result. 
Result so far: 211.0
If we take 258 away from 484, we end up with 226.
Include the next digit (2) from the dividend after 226, then repeat: 2262 / 258

Moving on to step 6:
258 can be fit into 2262 8 times, resulting in a remainder of 198.
The number 8 becomes the next digit in our result. 
Result so far: 2118.0
Subtracting 2064 from 2262 leaves us with 198.
Include the next digit (9) from the dividend after 198, then repeat: 1989 / 258

Advancing to step 7:
If we divide 1989 by 258, we get 7 and a remainder of 183.
Write down 7 as next digit of the result. 
Result so far: 21187.0
Subtracting 1806 from 1989 leaves us with 183.
Append the next digit (0) from the dividend to 183 and continue with: 1830 / 258

On to step 8:
The number 258 fits into 1830 7 times, leaving a remainder of 24.
Record the quotient 7 as the next digit in the result. 
Result so far: 211877.0
Deduct 1806 from 1830 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 9:
258 goes into 240 0 times with a remainder of 240.
The next digit of our result is 0. 
Result so far: 211877.0
Subtracting 0 from 240 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 10:
2400 divided by 258 is 9 with a remainder of 78.
Use 9 as the next digit of our solution. 
Result so far: 211877.09
The remainder is 78 after subtracting 2322 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 11:
780 divided by 258 is 3 with a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 211877.093
The remainder is 6 after subtracting 774 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 12:
If we divide 60 by 258, we get 0 and a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 211877.093
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 13:
When dividing 600 by 258, we get 2 with a remainder of 84.
The number 2 becomes the next digit in our result. 
Result so far: 211877.09302
Subtracting 516 from 600 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

On to step 14:
The number 258 fits into 840 3 times, leaving a remainder of 66.
Record the quotient 3 as the next digit in the result. 
Result so far: 211877.093023
If we subtract 774 from 840, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 15:
258 goes into 660 2 times with a remainder of 144.
Use 2 as the next digit of our solution. 
Result so far: 211877.0930232
Subtract 516 from 660 to get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Advancing to step 16:
When dividing 1440 by 258, we get 5 with a remainder of 150.
Write down 5 as next digit of the result. 
Result so far: 211877.09302325
Deduct 1290 from 1440 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

The final outcome is 211877.09302325, with a leftover of 1.5e-07.