54911281 ÷ 124 
The aim is to understand the frequency of 124 in 54911281.

On to step 1:
124 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 124

Going ahead to step 2:
If we divide 54 by 124, we get 0 and a remainder of 54.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 54 after subtracting 0 from 54.
Bring next digit (9) of the dividend behind the 54 and repeat the process: 549 / 124

Let's proceed to step 3:
124 goes into 549 4 times with a remainder of 53.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 496 from 549 to get 53.
Bring next digit (1) of the dividend behind the 53 and repeat the process: 531 / 124

Let's proceed to step 4:
If we divide 531 by 124, we get 4 and a remainder of 35.
Write down 4 as next digit of the result. 
Result so far: 44.0
Deduct 496 from 531 and we're left with 35.
Fetch the next digit (1) from the dividend, attach it to 35 and continue: 351 / 124

Let's proceed to step 5:
When dividing 351 by 124, we get 2 with a remainder of 103.
Put 2 as the next digit of the answer. 
Result so far: 442.0
Deduct 248 from 351 and we're left with 103.
Fetch the next digit (2) from the dividend, attach it to 103 and continue: 1032 / 124

Let's proceed to step 6:
1032 divided by 124 is 8 with a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 4428.0
Subtracting 992 from 1032 leaves us with 40.
Append the next digit (8) from the dividend to 40 and continue with: 408 / 124

Going ahead to step 7:
408 divided by 124 is 3 with a remainder of 36.
The number 3 becomes the next digit in our result. 
Result so far: 44283.0
The remainder is 36 after subtracting 372 from 408.
Take the next digit (1) from the dividend and append it to 36, then repeat: 361 / 124

Advancing to step 8:
When dividing 361 by 124, we get 2 with a remainder of 113.
Record the quotient 2 as the next digit in the result. 
Result so far: 442832.0
The remainder is 113 after subtracting 248 from 361.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Let's proceed to step 9:
1130 divided by 124 is 9 with a remainder of 14.
Put 9 as the next digit of the answer. 
Result so far: 442832.9
Deduct 1116 from 1130 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 10:
124 can be fit into 140 1 times, resulting in a remainder of 16.
The number 1 becomes the next digit in our result. 
Result so far: 442832.91
The remainder is 16 after subtracting 124 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 11:
If we divide 160 by 124, we get 1 and a remainder of 36.
The next digit of our result is 1. 
Result so far: 442832.911
If we subtract 124 from 160, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The final outcome is 442832.911, with a leftover of 0.0036.