51842340 ÷ 75 
We want to figure out the number of times 51842340 can be divided by 75.

Let's proceed to step 1:
5 divided by 75 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 75

Step 2:
If we divide 51 by 75, we get 0 and a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Take the next digit (8) from the dividend and append it to 51, then repeat: 518 / 75

Going ahead to step 3:
75 goes into 518 6 times with a remainder of 68.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we subtract 450 from 518, we get 68.
Bring next digit (4) of the dividend behind the 68 and repeat the process: 684 / 75

Step 4:
684 divided by 75 is 9 with a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 69.0
If we take 675 away from 684, we end up with 9.
Bring next digit (2) of the dividend behind the 9 and repeat the process: 92 / 75

Let's proceed to step 5:
If we divide 92 by 75, we get 1 and a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 691.0
Deduct 75 from 92 and we're left with 17.
Bring next digit (3) of the dividend behind the 17 and repeat the process: 173 / 75

Advancing to step 6:
75 can be fit into 173 2 times, resulting in a remainder of 23.
The number 2 becomes the next digit in our result. 
Result so far: 6912.0
Subtract 150 from 173 to get 23.
Fetch the next digit (4) from the dividend, attach it to 23 and continue: 234 / 75

Going ahead to step 7:
75 can be fit into 234 3 times, resulting in a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 69123.0
The remainder is 9 after subtracting 225 from 234.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 75

Moving on to step 8:
When dividing 90 by 75, we get 1 with a remainder of 15.
The next digit of our result is 1. 
Result so far: 691231.0
The remainder is 15 after subtracting 75 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 9:
When dividing 150 by 75, we get 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 691231.2
The remainder is 0 after subtracting 150 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
If we divide 0 by 75, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 691231.2
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.

Moving on to step 11:
75 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 691231.2
If we take 0 away from 0, we end up 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 outcome is 691231.2, with a leftover of 0.0.