Let's divide 18988742 by 258
We want to divide 18988742 by 258.

Going ahead to step 1:
258 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 258

Step 2:
18 divided by 258 is 0 with a remainder of 18.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 18 to get 18.
Bring next digit (9) of the dividend behind the 18 and repeat the process: 189 / 258

Let's proceed to step 3:
189 divided by 258 is 0 with a remainder of 189.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 189, we get 189.
Take the next digit (8) from the dividend and append it to 189, then repeat: 1898 / 258

Let's proceed to step 4:
If we divide 1898 by 258, we get 7 and a remainder of 92.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Deduct 1806 from 1898 and we're left with 92.
Grab the next digit (8) from the dividend, add it to 92, then carry on: 928 / 258

Going ahead to step 5:
The number 258 fits into 928 3 times, leaving a remainder of 154.
Put 3 as the next digit of the answer. 
Result so far: 73.0
If we take 774 away from 928, we end up with 154.
Bring next digit (7) of the dividend behind the 154 and repeat the process: 1547 / 258

Moving on to step 6:
258 can be fit into 1547 5 times, resulting in a remainder of 257.
The number 5 becomes the next digit in our result. 
Result so far: 735.0
The remainder is 257 after subtracting 1290 from 1547.
Fetch the next digit (4) from the dividend, attach it to 257 and continue: 2574 / 258

On to step 7:
2574 divided by 258 is 9 with a remainder of 252.
The number 9 becomes the next digit in our result. 
Result so far: 7359.0
Subtracting 2322 from 2574 leaves us with 252.
Grab the next digit (2) from the dividend, add it to 252, then carry on: 2522 / 258

Going ahead to step 8:
258 can be fit into 2522 9 times, resulting in a remainder of 200.
Use 9 as the next digit of our solution. 
Result so far: 73599.0
Deduct 2322 from 2522 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 9:
The number 258 fits into 2000 7 times, leaving a remainder of 194.
Write down 7 as next digit of the result. 
Result so far: 73599.7
Subtracting 1806 from 2000 leaves us with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Step 10:
1940 divided by 258 is 7 with a remainder of 134.
Put 7 as the next digit of the answer. 
Result so far: 73599.77
Deduct 1806 from 1940 and we're left with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

After the division, we end up with 73599.77 and a remainder of 0.134.