We're dividing 90184033 by 678 
The aim is to understand the frequency of 678 in 90184033.

Step 1:
The number 678 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 678

Advancing to step 2:
When dividing 90 by 678, we get 0 with a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Append the next digit (1) from the dividend to 90 and continue with: 901 / 678

Moving on to step 3:
678 can be fit into 901 1 times, resulting in a remainder of 223.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 678 from 901 leaves us with 223.
Bring next digit (8) of the dividend behind the 223 and repeat the process: 2238 / 678

Advancing to step 4:
678 goes into 2238 3 times with a remainder of 204.
Use 3 as the next digit of our solution. 
Result so far: 13.0
The remainder is 204 after subtracting 2034 from 2238.
Grab the next digit (4) from the dividend, add it to 204, then carry on: 2044 / 678

Moving on to step 5:
678 goes into 2044 3 times with a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 133.0
Subtract 2034 from 2044 to get 10.
Bring next digit (0) of the dividend behind the 10 and repeat the process: 100 / 678

Advancing to step 6:
678 goes into 100 0 times with a remainder of 100.
Record the quotient 0 as the next digit in the result. 
Result so far: 1330.0
Subtract 0 from 100 to get 100.
Bring next digit (3) of the dividend behind the 100 and repeat the process: 1003 / 678

Step 7:
When dividing 1003 by 678, we get 1 with a remainder of 325.
Put 1 as the next digit of the answer. 
Result so far: 13301.0
Deduct 678 from 1003 and we're left with 325.
Grab the next digit (3) from the dividend, add it to 325, then carry on: 3253 / 678

On to step 8:
3253 divided by 678 is 4 with a remainder of 541.
Put 4 as the next digit of the answer. 
Result so far: 133014.0
If we subtract 2712 from 3253, we get 541.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5410, and continue the process.

Going ahead to step 9:
678 goes into 5410 7 times with a remainder of 664.
Put 7 as the next digit of the answer. 
Result so far: 133014.7
Deduct 4746 from 5410 and we're left with 664.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6640, and continue the process.

On to step 10:
When dividing 6640 by 678, we get 9 with a remainder of 538.
The next digit of our result is 9. 
Result so far: 133014.79
The remainder is 538 after subtracting 6102 from 6640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

Moving on to step 11:
If we divide 5380 by 678, we get 7 and a remainder of 634.
Write down 7 as next digit of the result. 
Result so far: 133014.797
If we subtract 4746 from 5380, we get 634.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6340, and continue the process.

Moving on to step 12:
If we divide 6340 by 678, we get 9 and a remainder of 238.
The next digit of our result is 9. 
Result so far: 133014.7979
If we subtract 6102 from 6340, we get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Advancing to step 13:
When dividing 2380 by 678, we get 3 with a remainder of 346.
Record the quotient 3 as the next digit in the result. 
Result so far: 133014.79793
Deduct 2034 from 2380 and we're left with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Moving on to step 14:
When dividing 3460 by 678, we get 5 with a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 133014.797935
If we subtract 3390 from 3460, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 15:
678 can be fit into 700 1 times, resulting in a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 133014.7979351
If we take 678 away from 700, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 16:
The number 678 fits into 220 0 times, leaving a remainder of 220.
The number 0 becomes the next digit in our result. 
Result so far: 133014.7979351
If we take 0 away from 220, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

The final outcome is 133014.7979351, with a leftover of 2.2e-07.