53810718 divided by 258 
Our goal is to divide 53810718 by 258.

On to step 1:
258 can be fit into 5 0 times, resulting in a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 258

Moving on to step 2:
If we divide 53 by 258, we get 0 and a remainder of 53.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 53, we get 53.
Grab the next digit (8) from the dividend, add it to 53, then carry on: 538 / 258

Going ahead to step 3:
258 can be fit into 538 2 times, resulting in a remainder of 22.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 516 from 538, we get 22.
Bring next digit (1) of the dividend behind the 22 and repeat the process: 221 / 258

Advancing to step 4:
258 goes into 221 0 times with a remainder of 221.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
If we subtract 0 from 221, we get 221.
Append the next digit (0) from the dividend to 221 and continue with: 2210 / 258

Moving on to step 5:
If we divide 2210 by 258, we get 8 and a remainder of 146.
Use 8 as the next digit of our solution. 
Result so far: 208.0
If we take 2064 away from 2210, we end up with 146.
Fetch the next digit (7) from the dividend, attach it to 146 and continue: 1467 / 258

Going ahead to step 6:
When dividing 1467 by 258, we get 5 with a remainder of 177.
Write down 5 as next digit of the result. 
Result so far: 2085.0
Subtract 1290 from 1467 to get 177.
Fetch the next digit (1) from the dividend, attach it to 177 and continue: 1771 / 258

Advancing to step 7:
258 can be fit into 1771 6 times, resulting in a remainder of 223.
Use 6 as the next digit of our solution. 
Result so far: 20856.0
The remainder is 223 after subtracting 1548 from 1771.
Grab the next digit (8) from the dividend, add it to 223, then carry on: 2238 / 258

Moving on to step 8:
258 can be fit into 2238 8 times, resulting in a remainder of 174.
Put 8 as the next digit of the answer. 
Result so far: 208568.0
Subtract 2064 from 2238 to get 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Going ahead to step 9:
258 can be fit into 1740 6 times, resulting in a remainder of 192.
The number 6 becomes the next digit in our result. 
Result so far: 208568.6
The remainder is 192 after subtracting 1548 from 1740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Step 10:
When dividing 1920 by 258, we get 7 with a remainder of 114.
The next digit of our result is 7. 
Result so far: 208568.67
If we take 1806 away from 1920, 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.

Advancing to step 11:
258 can be fit into 1140 4 times, resulting in a remainder of 108.
Record the quotient 4 as the next digit in the result. 
Result so far: 208568.674
Deduct 1032 from 1140 and we're left 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.

On to step 12:
If we divide 1080 by 258, we get 4 and a remainder of 48.
Use 4 as the next digit of our solution. 
Result so far: 208568.6744
If we take 1032 away from 1080, we end up with 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 208568.6744, with a leftover of 0.00048.