51068340 ÷ 258 
We want to divide 51068340 by 258.

Moving on to step 1:
If we divide 5 by 258, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 258

On to step 2:
When dividing 51 by 258, we get 0 with a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Append the next digit (0) from the dividend to 51 and continue with: 510 / 258

On to step 3:
258 can be fit into 510 1 times, resulting in a remainder of 252.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 258 from 510 and we're left with 252.
Take the next digit (6) from the dividend and append it to 252, then repeat: 2526 / 258

Step 4:
258 can be fit into 2526 9 times, resulting in a remainder of 204.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we subtract 2322 from 2526, we get 204.
Grab the next digit (8) from the dividend, add it to 204, then carry on: 2048 / 258

Let's proceed to step 5:
2048 divided by 258 is 7 with a remainder of 242.
Use 7 as the next digit of our solution. 
Result so far: 197.0
If we take 1806 away from 2048, we end up with 242.
Take the next digit (3) from the dividend and append it to 242, then repeat: 2423 / 258

Step 6:
When dividing 2423 by 258, we get 9 with a remainder of 101.
Use 9 as the next digit of our solution. 
Result so far: 1979.0
Subtract 2322 from 2423 to get 101.
Grab the next digit (4) from the dividend, add it to 101, then carry on: 1014 / 258

On to step 7:
258 can be fit into 1014 3 times, resulting in a remainder of 240.
Put 3 as the next digit of the answer. 
Result so far: 19793.0
Subtract 774 from 1014 to get 240.
Append the next digit (0) from the dividend to 240 and continue with: 2400 / 258

Going ahead to step 8:
The number 258 fits into 2400 9 times, leaving a remainder of 78.
Put 9 as the next digit of the answer. 
Result so far: 197939.0
If we take 2322 away from 2400, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 9:
258 goes into 780 3 times with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 197939.3
If we take 774 away from 780, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 10:
The number 258 fits into 60 0 times, leaving a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 197939.3
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 11:
When dividing 600 by 258, we get 2 with a remainder of 84.
Put 2 as the next digit of the answer. 
Result so far: 197939.302
Subtract 516 from 600 to get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Advancing to step 12:
258 goes into 840 3 times with a remainder of 66.
The next digit of our result is 3. 
Result so far: 197939.3023
If we subtract 774 from 840, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 13:
258 goes into 660 2 times with a remainder of 144.
The next digit of our result is 2. 
Result so far: 197939.30232
Deduct 516 from 660 and we're left with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Let's proceed to step 14:
If we divide 1440 by 258, we get 5 and a remainder of 150.
Write down 5 as next digit of the result. 
Result so far: 197939.302325
If we take 1290 away from 1440, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 15:
258 goes into 1500 5 times with a remainder of 210.
The number 5 becomes the next digit in our result. 
Result so far: 197939.3023255
If we subtract 1290 from 1500, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

In conclusion, the division gives 197939.3023255 with a balance of 2.1e-06.