Let's divide 51111959 by 1
Let's see how many times 1 fits into 51111959.

On to step 1:
If we divide 5 by 1, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we subtract 5 from 5, we get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 1

Let's proceed to step 2:
If we divide 1 by 1, we get 1 and a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 51.0
Subtract 1 from 1 to get 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 1

Advancing to step 3:
When dividing 1 by 1, we get 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 511.0
If we subtract 1 from 1, we get 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 1

Step 4:
1 divided by 1 is 1 with a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 5111.0
If we subtract 1 from 1, we get 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 1

Moving on to step 5:
1 divided by 1 is 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 51111.0
The remainder is 0 after subtracting 1 from 1.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 1

Advancing to step 6:
When dividing 9 by 1, we get 9 with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 511119.0
If we subtract 9 from 9, we get 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 1

Going ahead to step 7:
1 goes into 5 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 5111195.0
Subtract 5 from 5 to get 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 1

Let's proceed to step 8:
1 goes into 9 9 times with a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 51111959.0
If we take 9 away from 9, 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.

Moving on to step 9:
0 divided by 1 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 51111959.0
If we subtract 0 from 0, we get 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 10:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 51111959.0
Subtract 0 from 0 to get 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 result is 51111959.0 with a remainder of 0.0.