Let's divide 89428023 by 258
We're looking to find how many times 258 goes into 89428023.

Let's proceed to step 1:
When dividing 8 by 258, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 258

On to step 2:
89 divided by 258 is 0 with a remainder of 89.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 89 and we're left with 89.
Take the next digit (4) from the dividend and append it to 89, then repeat: 894 / 258

On to step 3:
258 can be fit into 894 3 times, resulting in a remainder of 120.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 774 from 894 to get 120.
Append the next digit (2) from the dividend to 120 and continue with: 1202 / 258

Going ahead to step 4:
When dividing 1202 by 258, we get 4 with a remainder of 170.
The next digit of our result is 4. 
Result so far: 34.0
Subtract 1032 from 1202 to get 170.
Take the next digit (8) from the dividend and append it to 170, then repeat: 1708 / 258

On to step 5:
258 can be fit into 1708 6 times, resulting in a remainder of 160.
The next digit of our result is 6. 
Result so far: 346.0
Subtract 1548 from 1708 to get 160.
Take the next digit (0) from the dividend and append it to 160, then repeat: 1600 / 258

Step 6:
If we divide 1600 by 258, we get 6 and a remainder of 52.
Record the quotient 6 as the next digit in the result. 
Result so far: 3466.0
The remainder is 52 after subtracting 1548 from 1600.
Fetch the next digit (2) from the dividend, attach it to 52 and continue: 522 / 258

Step 7:
258 can be fit into 522 2 times, resulting in a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 34662.0
Deduct 516 from 522 and we're left with 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 258

Moving on to step 8:
258 goes into 63 0 times with a remainder of 63.
Use 0 as the next digit of our solution. 
Result so far: 346620.0
Deduct 0 from 63 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 9:
If we divide 630 by 258, we get 2 and a remainder of 114.
Use 2 as the next digit of our solution. 
Result so far: 346620.2
If we take 516 away from 630, we end up with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

On to step 10:
258 goes into 1140 4 times with a remainder of 108.
Use 4 as the next digit of our solution. 
Result so far: 346620.24
If we take 1032 away from 1140, we end up with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Let's proceed to step 11:
When dividing 1080 by 258, we get 4 with a remainder of 48.
The next digit of our result is 4. 
Result so far: 346620.244
Subtract 1032 from 1080 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final outcome is 346620.244, with a leftover of 0.0048.