We look at the division of 78549571 by 124 
Our goal is to divide 78549571 by 124.

Step 1:
The number 124 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 124

Let's proceed to step 2:
The number 124 fits into 78 0 times, leaving a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Take the next digit (5) from the dividend and append it to 78, then repeat: 785 / 124

Step 3:
124 goes into 785 6 times with a remainder of 41.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
The remainder is 41 after subtracting 744 from 785.
Grab the next digit (4) from the dividend, add it to 41, then carry on: 414 / 124

Advancing to step 4:
414 divided by 124 is 3 with a remainder of 42.
Put 3 as the next digit of the answer. 
Result so far: 63.0
If we subtract 372 from 414, we get 42.
Fetch the next digit (9) from the dividend, attach it to 42 and continue: 429 / 124

Let's proceed to step 5:
The number 124 fits into 429 3 times, leaving a remainder of 57.
Put 3 as the next digit of the answer. 
Result so far: 633.0
The remainder is 57 after subtracting 372 from 429.
Include the next digit (5) from the dividend after 57, then repeat: 575 / 124

Let's proceed to step 6:
124 can be fit into 575 4 times, resulting in a remainder of 79.
Use 4 as the next digit of our solution. 
Result so far: 6334.0
Deduct 496 from 575 and we're left with 79.
Append the next digit (7) from the dividend to 79 and continue with: 797 / 124

Advancing to step 7:
124 can be fit into 797 6 times, resulting in a remainder of 53.
The next digit of our result is 6. 
Result so far: 63346.0
Subtract 744 from 797 to get 53.
Bring next digit (1) of the dividend behind the 53 and repeat the process: 531 / 124

Going ahead to step 8:
531 divided by 124 is 4 with a remainder of 35.
Record the quotient 4 as the next digit in the result. 
Result so far: 633464.0
The remainder is 35 after subtracting 496 from 531.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 9:
If we divide 350 by 124, we get 2 and a remainder of 102.
Put 2 as the next digit of the answer. 
Result so far: 633464.2
Deduct 248 from 350 and we're left with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Going ahead to step 10:
124 goes into 1020 8 times with a remainder of 28.
Use 8 as the next digit of our solution. 
Result so far: 633464.28
The remainder is 28 after subtracting 992 from 1020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 11:
280 divided by 124 is 2 with a remainder of 32.
The next digit of our result is 2. 
Result so far: 633464.282
Subtracting 248 from 280 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.

Going ahead to step 12:
124 goes into 320 2 times with a remainder of 72.
The number 2 becomes the next digit in our result. 
Result so far: 633464.2822
Subtracting 248 from 320 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final outcome is 633464.2822, with a leftover of 0.00072.