67545654 ÷ 158 
The aim is to understand the frequency of 158 in 67545654.

Advancing to step 1:
When dividing 6 by 158, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 158

Going ahead to step 2:
67 divided by 158 is 0 with a remainder of 67.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 67 and we're left with 67.
Grab the next digit (5) from the dividend, add it to 67, then carry on: 675 / 158

Step 3:
If we divide 675 by 158, we get 4 and a remainder of 43.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 632 from 675, we get 43.
Bring next digit (4) of the dividend behind the 43 and repeat the process: 434 / 158

Advancing to step 4:
If we divide 434 by 158, we get 2 and a remainder of 118.
Use 2 as the next digit of our solution. 
Result so far: 42.0
Subtracting 316 from 434 leaves us with 118.
Append the next digit (5) from the dividend to 118 and continue with: 1185 / 158

Advancing to step 5:
When dividing 1185 by 158, we get 7 with a remainder of 79.
The number 7 becomes the next digit in our result. 
Result so far: 427.0
Subtract 1106 from 1185 to get 79.
Grab the next digit (6) from the dividend, add it to 79, then carry on: 796 / 158

On to step 6:
When dividing 796 by 158, we get 5 with a remainder of 6.
The next digit of our result is 5. 
Result so far: 4275.0
If we subtract 790 from 796, we get 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 158

On to step 7:
If we divide 65 by 158, we get 0 and a remainder of 65.
The number 0 becomes the next digit in our result. 
Result so far: 42750.0
Deduct 0 from 65 and we're left with 65.
Fetch the next digit (4) from the dividend, attach it to 65 and continue: 654 / 158

Advancing to step 8:
If we divide 654 by 158, we get 4 and a remainder of 22.
Write down 4 as next digit of the result. 
Result so far: 427504.0
Deduct 632 from 654 and we're left 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 9:
When dividing 220 by 158, we get 1 with a remainder of 62.
Write down 1 as next digit of the result. 
Result so far: 427504.1
If we take 158 away from 220, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 10:
158 goes into 620 3 times with a remainder of 146.
The next digit of our result is 3. 
Result so far: 427504.13
Subtract 474 from 620 to get 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Step 11:
158 can be fit into 1460 9 times, resulting in a remainder of 38.
Put 9 as the next digit of the answer. 
Result so far: 427504.139
If we take 1422 away from 1460, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 12:
158 goes into 380 2 times with a remainder of 64.
The number 2 becomes the next digit in our result. 
Result so far: 427504.1392
Deduct 316 from 380 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 13:
158 goes into 640 4 times with a remainder of 8.
The next digit of our result is 4. 
Result so far: 427504.13924
Deduct 632 from 640 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 14:
If we divide 80 by 158, we get 0 and a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 427504.13924
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 15:
The number 158 fits into 800 5 times, leaving a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 427504.1392405
Subtracting 790 from 800 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 16:
158 goes into 100 0 times with a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 427504.1392405
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

After the division, we end up with 427504.1392405 and a remainder of 1e-07.