We're dividing 51191 by 48 
We want to figure out the number of times 51191 can be divided by 48.

Step 1:
If we divide 5 by 48, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 48

Going ahead to step 2:
When dividing 51 by 48, we get 1 with a remainder of 3.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 48 from 51 leaves us with 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 48

Going ahead to step 3:
The number 48 fits into 31 0 times, leaving a remainder of 31.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 31 and we're left with 31.
Fetch the next digit (9) from the dividend, attach it to 31 and continue: 319 / 48

On to step 4:
48 goes into 319 6 times with a remainder of 31.
The number 6 becomes the next digit in our result. 
Result so far: 106.0
Subtract 288 from 319 to get 31.
Fetch the next digit (1) from the dividend, attach it to 31 and continue: 311 / 48

Advancing to step 5:
48 can be fit into 311 6 times, resulting in a remainder of 23.
The next digit of our result is 6. 
Result so far: 1066.0
Subtracting 288 from 311 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 6:
230 divided by 48 is 4 with a remainder of 38.
Record the quotient 4 as the next digit in the result. 
Result so far: 1066.4
Subtract 192 from 230 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 7:
When dividing 380 by 48, we get 7 with a remainder of 44.
Record the quotient 7 as the next digit in the result. 
Result so far: 1066.47
If we take 336 away from 380, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 8:
440 divided by 48 is 9 with a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 1066.479
Subtract 432 from 440 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 9:
48 goes into 80 1 times with a remainder of 32.
Write down 1 as next digit of the result. 
Result so far: 1066.4791
Subtracting 48 from 80 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 10:
48 goes into 320 6 times with a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 1066.47916
Deduct 288 from 320 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 11:
When dividing 320 by 48, we get 6 with a remainder of 32.
Use 6 as the next digit of our solution. 
Result so far: 1066.479166
If we take 288 away from 320, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 1066.479166 and a remainder of 3.2e-06.