We look at the division of 386146 by 74 
The aim is to understand the frequency of 74 in 386146.

Step 1:
When dividing 3 by 74, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 74

Let's proceed to step 2:
38 divided by 74 is 0 with a remainder of 38.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 38 leaves us with 38.
Take the next digit (6) from the dividend and append it to 38, then repeat: 386 / 74

Advancing to step 3:
The number 74 fits into 386 5 times, leaving a remainder of 16.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 370 from 386 to get 16.
Take the next digit (1) from the dividend and append it to 16, then repeat: 161 / 74

Advancing to step 4:
When dividing 161 by 74, we get 2 with a remainder of 13.
The next digit of our result is 2. 
Result so far: 52.0
Subtract 148 from 161 to get 13.
Append the next digit (4) from the dividend to 13 and continue with: 134 / 74

Moving on to step 5:
The number 74 fits into 134 1 times, leaving a remainder of 60.
Record the quotient 1 as the next digit in the result. 
Result so far: 521.0
Deduct 74 from 134 and we're left with 60.
Include the next digit (6) from the dividend after 60, then repeat: 606 / 74

Moving on to step 6:
74 goes into 606 8 times with a remainder of 14.
Write down 8 as next digit of the result. 
Result so far: 5218.0
Deduct 592 from 606 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 7:
140 divided by 74 is 1 with a remainder of 66.
Record the quotient 1 as the next digit in the result. 
Result so far: 5218.1
Subtracting 74 from 140 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 8:
74 goes into 660 8 times with a remainder of 68.
Write down 8 as next digit of the result. 
Result so far: 5218.18
Subtract 592 from 660 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 9:
74 goes into 680 9 times with a remainder of 14.
The next digit of our result is 9. 
Result so far: 5218.189
If we take 666 away from 680, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 10:
74 goes into 140 1 times with a remainder of 66.
Record the quotient 1 as the next digit in the result. 
Result so far: 5218.1891
Subtract 74 from 140 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 11:
If we divide 660 by 74, we get 8 and a remainder of 68.
The number 8 becomes the next digit in our result. 
Result so far: 5218.18918
Deduct 592 from 660 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 12:
680 divided by 74 is 9 with a remainder of 14.
Record the quotient 9 as the next digit in the result. 
Result so far: 5218.189189
Subtract 666 from 680 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 13:
If we divide 140 by 74, we get 1 and a remainder of 66.
Put 1 as the next digit of the answer. 
Result so far: 5218.1891891
Subtract 74 from 140 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 14:
If we divide 660 by 74, we get 8 and a remainder of 68.
Use 8 as the next digit of our solution. 
Result so far: 5218.18918918
If we take 592 away from 660, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

The final outcome is 5218.18918918, with a leftover of 6.8e-08.