54578861 ÷ 949 
The aim is to understand the frequency of 949 in 54578861.

Moving on to step 1:
The number 949 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 949

Moving on to step 2:
The number 949 fits into 54 0 times, leaving a remainder of 54.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 54 after subtracting 0 from 54.
Append the next digit (5) from the dividend to 54 and continue with: 545 / 949

Moving on to step 3:
949 can be fit into 545 0 times, resulting in a remainder of 545.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 545, we get 545.
Bring next digit (7) of the dividend behind the 545 and repeat the process: 5457 / 949

Moving on to step 4:
949 can be fit into 5457 5 times, resulting in a remainder of 712.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtracting 4745 from 5457 leaves us with 712.
Include the next digit (8) from the dividend after 712, then repeat: 7128 / 949

Step 5:
If we divide 7128 by 949, we get 7 and a remainder of 485.
Write down 7 as next digit of the result. 
Result so far: 57.0
Deduct 6643 from 7128 and we're left with 485.
Bring next digit (8) of the dividend behind the 485 and repeat the process: 4858 / 949

Advancing to step 6:
4858 divided by 949 is 5 with a remainder of 113.
Record the quotient 5 as the next digit in the result. 
Result so far: 575.0
The remainder is 113 after subtracting 4745 from 4858.
Include the next digit (6) from the dividend after 113, then repeat: 1136 / 949

Going ahead to step 7:
1136 divided by 949 is 1 with a remainder of 187.
Put 1 as the next digit of the answer. 
Result so far: 5751.0
If we take 949 away from 1136, we end up with 187.
Include the next digit (1) from the dividend after 187, then repeat: 1871 / 949

Let's proceed to step 8:
1871 divided by 949 is 1 with a remainder of 922.
Put 1 as the next digit of the answer. 
Result so far: 57511.0
Deduct 949 from 1871 and we're left with 922.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9220, and continue the process.

Going ahead to step 9:
9220 divided by 949 is 9 with a remainder of 679.
The number 9 becomes the next digit in our result. 
Result so far: 57511.9
If we subtract 8541 from 9220, we get 679.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6790, and continue the process.

Let's proceed to step 10:
949 goes into 6790 7 times with a remainder of 147.
Record the quotient 7 as the next digit in the result. 
Result so far: 57511.97
If we subtract 6643 from 6790, we get 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

On to step 11:
1470 divided by 949 is 1 with a remainder of 521.
The next digit of our result is 1. 
Result so far: 57511.971
Subtract 949 from 1470 to get 521.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5210, and continue the process.

Let's proceed to step 12:
5210 divided by 949 is 5 with a remainder of 465.
The number 5 becomes the next digit in our result. 
Result so far: 57511.9715
The remainder is 465 after subtracting 4745 from 5210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4650, and continue the process.

On to step 13:
949 can be fit into 4650 4 times, resulting in a remainder of 854.
The next digit of our result is 4. 
Result so far: 57511.97154
The remainder is 854 after subtracting 3796 from 4650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8540, and continue the process.

Going ahead to step 14:
949 can be fit into 8540 8 times, resulting in a remainder of 948.
Record the quotient 8 as the next digit in the result. 
Result so far: 57511.971548
If we take 7592 away from 8540, we end up with 948.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9480, and continue the process.

Step 15:
If we divide 9480 by 949, we get 9 and a remainder of 939.
The number 9 becomes the next digit in our result. 
Result so far: 57511.9715489
Deduct 8541 from 9480 and we're left with 939.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9390, and continue the process.

Moving on to step 16:
If we divide 9390 by 949, we get 9 and a remainder of 849.
Write down 9 as next digit of the result. 
Result so far: 57511.97154899
Subtract 8541 from 9390 to get 849.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8490, and continue the process.

The final result is 57511.97154899 with a remainder of 8.49e-07.