51221164 divided by 48 
Let's see how many times 48 fits into 51221164.

Moving on to step 1:
5 divided by 48 is 0 with 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.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 48

Let's proceed to step 2:
48 goes into 51 1 times with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 48 away from 51, we end up with 3.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 48

Advancing to step 3:
If we divide 32 by 48, we get 0 and a remainder of 32.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 32 and we're left with 32.
Grab the next digit (2) from the dividend, add it to 32, then carry on: 322 / 48

Moving on to step 4:
48 goes into 322 6 times with a remainder of 34.
The next digit of our result is 6. 
Result so far: 106.0
Deduct 288 from 322 and we're left with 34.
Append the next digit (1) from the dividend to 34 and continue with: 341 / 48

Going ahead to step 5:
48 can be fit into 341 7 times, resulting in a remainder of 5.
The next digit of our result is 7. 
Result so far: 1067.0
Deduct 336 from 341 and we're left with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 48

Step 6:
51 divided by 48 is 1 with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 10671.0
Subtracting 48 from 51 leaves us with 3.
Take the next digit (6) from the dividend and append it to 3, then repeat: 36 / 48

Going ahead to step 7:
If we divide 36 by 48, we get 0 and a remainder of 36.
The next digit of our result is 0. 
Result so far: 106710.0
Subtract 0 from 36 to get 36.
Bring next digit (4) of the dividend behind the 36 and repeat the process: 364 / 48

Advancing to step 8:
48 can be fit into 364 7 times, resulting in a remainder of 28.
The number 7 becomes the next digit in our result. 
Result so far: 1067107.0
The remainder is 28 after subtracting 336 from 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 9:
If we divide 280 by 48, we get 5 and a remainder of 40.
Put 5 as the next digit of the answer. 
Result so far: 1067107.5
The remainder is 40 after subtracting 240 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
48 can be fit into 400 8 times, resulting in a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 1067107.58
If we subtract 384 from 400, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 11:
When dividing 160 by 48, we get 3 with a remainder of 16.
Record the quotient 3 as the next digit in the result. 
Result so far: 1067107.583
Subtracting 144 from 160 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 12:
The number 48 fits into 160 3 times, leaving a remainder of 16.
The next digit of our result is 3. 
Result so far: 1067107.5833
If we subtract 144 from 160, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

In conclusion, the division gives 1067107.5833 with a balance of 0.00016.