Let's divide 30198721 by 258
We're looking to find how many times 258 goes into 30198721.

Advancing to step 1:
If we divide 3 by 258, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 258

Going ahead to step 2:
When dividing 30 by 258, we get 0 with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 30 after subtracting 0 from 30.
Append the next digit (1) from the dividend to 30 and continue with: 301 / 258

Step 3:
When dividing 301 by 258, we get 1 with a remainder of 43.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 258 from 301 and we're left with 43.
Fetch the next digit (9) from the dividend, attach it to 43 and continue: 439 / 258

Moving on to step 4:
The number 258 fits into 439 1 times, leaving a remainder of 181.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtract 258 from 439 to get 181.
Fetch the next digit (8) from the dividend, attach it to 181 and continue: 1818 / 258

Let's proceed to step 5:
When dividing 1818 by 258, we get 7 with a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 117.0
The remainder is 12 after subtracting 1806 from 1818.
Fetch the next digit (7) from the dividend, attach it to 12 and continue: 127 / 258

Let's proceed to step 6:
When dividing 127 by 258, we get 0 with a remainder of 127.
Use 0 as the next digit of our solution. 
Result so far: 1170.0
Deduct 0 from 127 and we're left with 127.
Include the next digit (2) from the dividend after 127, then repeat: 1272 / 258

Step 7:
The number 258 fits into 1272 4 times, leaving a remainder of 240.
Put 4 as the next digit of the answer. 
Result so far: 11704.0
Subtract 1032 from 1272 to get 240.
Grab the next digit (1) from the dividend, add it to 240, then carry on: 2401 / 258

On to step 8:
258 can be fit into 2401 9 times, resulting in a remainder of 79.
Put 9 as the next digit of the answer. 
Result so far: 117049.0
If we take 2322 away from 2401, we end up with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Let's proceed to step 9:
The number 258 fits into 790 3 times, leaving a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 117049.3
If we subtract 774 from 790, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 10:
160 divided by 258 is 0 with a remainder of 160.
Record the quotient 0 as the next digit in the result. 
Result so far: 117049.3
If we take 0 away from 160, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 11:
When dividing 1600 by 258, we get 6 with a remainder of 52.
Write down 6 as next digit of the result. 
Result so far: 117049.306
Deduct 1548 from 1600 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 12:
When dividing 520 by 258, we get 2 with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 117049.3062
Deduct 516 from 520 and we're left with 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 13:
The number 258 fits into 40 0 times, leaving a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 117049.3062
If we take 0 away from 40, we end up 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.

Moving on to step 14:
When dividing 400 by 258, we get 1 with a remainder of 142.
Use 1 as the next digit of our solution. 
Result so far: 117049.306201
The remainder is 142 after subtracting 258 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

On to step 15:
If we divide 1420 by 258, we get 5 and a remainder of 130.
Use 5 as the next digit of our solution. 
Result so far: 117049.3062015
Deduct 1290 from 1420 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Moving on to step 16:
When dividing 1300 by 258, we get 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 117049.30620155
Subtracting 1290 from 1300 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final result is 117049.30620155 with a remainder of 1e-08.