57158148 ÷ 123 
We want to figure out the number of times 57158148 can be divided by 123.

Going ahead to step 1:
123 can be fit into 5 0 times, resulting in a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 123

Advancing to step 2:
If we divide 57 by 123, we get 0 and a remainder of 57.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 57 leaves us with 57.
Bring next digit (1) of the dividend behind the 57 and repeat the process: 571 / 123

Moving on to step 3:
When dividing 571 by 123, we get 4 with a remainder of 79.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 79 after subtracting 492 from 571.
Bring next digit (5) of the dividend behind the 79 and repeat the process: 795 / 123

Advancing to step 4:
123 goes into 795 6 times with a remainder of 57.
The number 6 becomes the next digit in our result. 
Result so far: 46.0
Subtract 738 from 795 to get 57.
Bring next digit (8) of the dividend behind the 57 and repeat the process: 578 / 123

On to step 5:
The number 123 fits into 578 4 times, leaving a remainder of 86.
Write down 4 as next digit of the result. 
Result so far: 464.0
Deduct 492 from 578 and we're left with 86.
Fetch the next digit (1) from the dividend, attach it to 86 and continue: 861 / 123

Going ahead to step 6:
If we divide 861 by 123, we get 7 and a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 4647.0
If we take 861 away from 861, we end up with 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 123

Step 7:
4 divided by 123 is 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 46470.0
If we subtract 0 from 4, we get 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 123

Going ahead to step 8:
The number 123 fits into 48 0 times, leaving a remainder of 48.
Write down 0 as next digit of the result. 
Result so far: 464700.0
Deduct 0 from 48 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 9:
123 goes into 480 3 times with a remainder of 111.
The number 3 becomes the next digit in our result. 
Result so far: 464700.3
If we take 369 away from 480, we end up with 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Moving on to step 10:
When dividing 1110 by 123, we get 9 with a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 464700.39
Subtracting 1107 from 1110 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 11:
If we divide 30 by 123, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 464700.39
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 12:
If we divide 300 by 123, we get 2 and a remainder of 54.
Put 2 as the next digit of the answer. 
Result so far: 464700.3902
The remainder is 54 after subtracting 246 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 13:
The number 123 fits into 540 4 times, leaving a remainder of 48.
Record the quotient 4 as the next digit in the result. 
Result so far: 464700.39024
If we take 492 away from 540, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 14:
When dividing 480 by 123, we get 3 with a remainder of 111.
Record the quotient 3 as the next digit in the result. 
Result so far: 464700.390243
Subtract 369 from 480 to get 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

On to step 15:
The number 123 fits into 1110 9 times, leaving a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 464700.3902439
Deduct 1107 from 1110 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 16:
If we divide 30 by 123, we get 0 and a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 464700.3902439
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final result is 464700.3902439 with a remainder of 3e-08.