258687 ÷ 90 
We're looking to find how many times 90 goes into 258687.

Advancing to step 1:
If we divide 2 by 90, 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 (5) of the dividend behind the 2 and repeat the process: 25 / 90

Going ahead to step 2:
25 divided by 90 is 0 with a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Bring next digit (8) of the dividend behind the 25 and repeat the process: 258 / 90

Advancing to step 3:
When dividing 258 by 90, we get 2 with a remainder of 78.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 78 after subtracting 180 from 258.
Grab the next digit (6) from the dividend, add it to 78, then carry on: 786 / 90

On to step 4:
786 divided by 90 is 8 with a remainder of 66.
Put 8 as the next digit of the answer. 
Result so far: 28.0
If we take 720 away from 786, we end up with 66.
Take the next digit (8) from the dividend and append it to 66, then repeat: 668 / 90

Moving on to step 5:
90 goes into 668 7 times with a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 287.0
Deduct 630 from 668 and we're left with 38.
Grab the next digit (7) from the dividend, add it to 38, then carry on: 387 / 90

Moving on to step 6:
When dividing 387 by 90, we get 4 with a remainder of 27.
Record the quotient 4 as the next digit in the result. 
Result so far: 2874.0
If we subtract 360 from 387, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 7:
When dividing 270 by 90, we get 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 2874.3
If we subtract 270 from 270, we 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.

Step 8:
When dividing 0 by 90, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 2874.3
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.

Advancing to step 9:
When dividing 0 by 90, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 2874.3
Deduct 0 from 0 and we're left with 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 2874.3 with a remainder of 0.0.