61613829 divided by 54 
The aim is to understand the frequency of 54 in 61613829.

Moving on to step 1:
54 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 54

Going ahead to step 2:
When dividing 61 by 54, we get 1 with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 54 from 61 to get 7.
Bring next digit (6) of the dividend behind the 7 and repeat the process: 76 / 54

Advancing to step 3:
When dividing 76 by 54, we get 1 with a remainder of 22.
The next digit of our result is 1. 
Result so far: 11.0
If we take 54 away from 76, we end up with 22.
Bring next digit (1) of the dividend behind the 22 and repeat the process: 221 / 54

On to step 4:
221 divided by 54 is 4 with a remainder of 5.
Write down 4 as next digit of the result. 
Result so far: 114.0
Subtract 216 from 221 to get 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 54

Advancing to step 5:
54 can be fit into 53 0 times, resulting in a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 1140.0
If we subtract 0 from 53, we get 53.
Bring next digit (8) of the dividend behind the 53 and repeat the process: 538 / 54

On to step 6:
When dividing 538 by 54, we get 9 with a remainder of 52.
Write down 9 as next digit of the result. 
Result so far: 11409.0
Deduct 486 from 538 and we're left with 52.
Grab the next digit (2) from the dividend, add it to 52, then carry on: 522 / 54

Step 7:
When dividing 522 by 54, we get 9 with a remainder of 36.
Put 9 as the next digit of the answer. 
Result so far: 114099.0
Subtract 486 from 522 to get 36.
Take the next digit (9) from the dividend and append it to 36, then repeat: 369 / 54

On to step 8:
54 can be fit into 369 6 times, resulting in a remainder of 45.
Record the quotient 6 as the next digit in the result. 
Result so far: 1140996.0
Deduct 324 from 369 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 9:
When dividing 450 by 54, we get 8 with a remainder of 18.
Put 8 as the next digit of the answer. 
Result so far: 1140996.8
The remainder is 18 after subtracting 432 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 10:
If we divide 180 by 54, we get 3 and a remainder of 18.
Put 3 as the next digit of the answer. 
Result so far: 1140996.83
The remainder is 18 after subtracting 162 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 11:
180 divided by 54 is 3 with a remainder of 18.
The number 3 becomes the next digit in our result. 
Result so far: 1140996.833
If we subtract 162 from 180, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

After the division, we end up with 1140996.833 and a remainder of 0.0018.