We're dividing 66545462 by 158 
The aim is to understand the frequency of 158 in 66545462.

Step 1:
6 divided by 158 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 158

Going ahead to step 2:
158 goes into 66 0 times with a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Fetch the next digit (5) from the dividend, attach it to 66 and continue: 665 / 158

Going ahead to step 3:
If we divide 665 by 158, we get 4 and a remainder of 33.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 632 away from 665, we end up with 33.
Grab the next digit (4) from the dividend, add it to 33, then carry on: 334 / 158

Moving on to step 4:
When dividing 334 by 158, we get 2 with a remainder of 18.
The next digit of our result is 2. 
Result so far: 42.0
If we subtract 316 from 334, we get 18.
Bring next digit (5) of the dividend behind the 18 and repeat the process: 185 / 158

Step 5:
The number 158 fits into 185 1 times, leaving a remainder of 27.
The next digit of our result is 1. 
Result so far: 421.0
The remainder is 27 after subtracting 158 from 185.
Grab the next digit (4) from the dividend, add it to 27, then carry on: 274 / 158

Step 6:
158 can be fit into 274 1 times, resulting in a remainder of 116.
Record the quotient 1 as the next digit in the result. 
Result so far: 4211.0
Subtract 158 from 274 to get 116.
Grab the next digit (6) from the dividend, add it to 116, then carry on: 1166 / 158

On to step 7:
When dividing 1166 by 158, we get 7 with a remainder of 60.
Put 7 as the next digit of the answer. 
Result so far: 42117.0
If we take 1106 away from 1166, we end up with 60.
Append the next digit (2) from the dividend to 60 and continue with: 602 / 158

On to step 8:
The number 158 fits into 602 3 times, leaving a remainder of 128.
The number 3 becomes the next digit in our result. 
Result so far: 421173.0
Subtracting 474 from 602 leaves us with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Advancing to step 9:
158 can be fit into 1280 8 times, resulting in a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 421173.8
Subtract 1264 from 1280 to get 16.
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 10:
160 divided by 158 is 1 with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 421173.81
If we take 158 away from 160, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 11:
The number 158 fits into 20 0 times, leaving a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 421173.81
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 12:
When dividing 200 by 158, we get 1 with a remainder of 42.
Record the quotient 1 as the next digit in the result. 
Result so far: 421173.8101
Subtracting 158 from 200 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 13:
If we divide 420 by 158, we get 2 and a remainder of 104.
Put 2 as the next digit of the answer. 
Result so far: 421173.81012
Subtract 316 from 420 to get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

On to step 14:
1040 divided by 158 is 6 with a remainder of 92.
Write down 6 as next digit of the result. 
Result so far: 421173.810126
Subtracting 948 from 1040 leaves us with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Going ahead to step 15:
The number 158 fits into 920 5 times, leaving a remainder of 130.
Record the quotient 5 as the next digit in the result. 
Result so far: 421173.8101265
Subtract 790 from 920 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Advancing to step 16:
158 goes into 1300 8 times with a remainder of 36.
The next digit of our result is 8. 
Result so far: 421173.81012658
Deduct 1264 from 1300 and we're left with 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 quotient of the division is 421173.81012658, and the remainder is 3.6e-08.