We look at the division of 51220145 by 948 
We're looking to find how many times 948 goes into 51220145.

Step 1:
948 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 948

Moving on to step 2:
If we divide 51 by 948, we get 0 and a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Take the next digit (2) from the dividend and append it to 51, then repeat: 512 / 948

Advancing to step 3:
When dividing 512 by 948, we get 0 with a remainder of 512.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 512 after subtracting 0 from 512.
Append the next digit (2) from the dividend to 512 and continue with: 5122 / 948

Step 4:
If we divide 5122 by 948, we get 5 and a remainder of 382.
The next digit of our result is 5. 
Result so far: 5.0
The remainder is 382 after subtracting 4740 from 5122.
Fetch the next digit (0) from the dividend, attach it to 382 and continue: 3820 / 948

Let's proceed to step 5:
3820 divided by 948 is 4 with a remainder of 28.
Write down 4 as next digit of the result. 
Result so far: 54.0
If we take 3792 away from 3820, we end up with 28.
Grab the next digit (1) from the dividend, add it to 28, then carry on: 281 / 948

Going ahead to step 6:
When dividing 281 by 948, we get 0 with a remainder of 281.
Write down 0 as next digit of the result. 
Result so far: 540.0
Deduct 0 from 281 and we're left with 281.
Take the next digit (4) from the dividend and append it to 281, then repeat: 2814 / 948

Advancing to step 7:
The number 948 fits into 2814 2 times, leaving a remainder of 918.
Record the quotient 2 as the next digit in the result. 
Result so far: 5402.0
Subtract 1896 from 2814 to get 918.
Fetch the next digit (5) from the dividend, attach it to 918 and continue: 9185 / 948

Moving on to step 8:
The number 948 fits into 9185 9 times, leaving a remainder of 653.
Record the quotient 9 as the next digit in the result. 
Result so far: 54029.0
Deduct 8532 from 9185 and we're left with 653.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6530, and continue the process.

Going ahead to step 9:
948 goes into 6530 6 times with a remainder of 842.
Use 6 as the next digit of our solution. 
Result so far: 54029.6
Subtract 5688 from 6530 to get 842.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8420, and continue the process.

On to step 10:
948 goes into 8420 8 times with a remainder of 836.
The next digit of our result is 8. 
Result so far: 54029.68
If we subtract 7584 from 8420, we get 836.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8360, and continue the process.

Let's proceed to step 11:
948 can be fit into 8360 8 times, resulting in a remainder of 776.
The number 8 becomes the next digit in our result. 
Result so far: 54029.688
If we subtract 7584 from 8360, we get 776.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7760, and continue the process.

After the division, we end up with 54029.688 and a remainder of 0.0776.