We look at the division of 66493570 by 146 
The aim is to understand the frequency of 146 in 66493570.

Advancing to step 1:
The number 146 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 146

Step 2:
If we divide 66 by 146, we get 0 and a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Include the next digit (4) from the dividend after 66, then repeat: 664 / 146

Advancing to step 3:
If we divide 664 by 146, we get 4 and a remainder of 80.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 80 after subtracting 584 from 664.
Append the next digit (9) from the dividend to 80 and continue with: 809 / 146

Moving on to step 4:
146 goes into 809 5 times with a remainder of 79.
Put 5 as the next digit of the answer. 
Result so far: 45.0
If we subtract 730 from 809, we get 79.
Grab the next digit (3) from the dividend, add it to 79, then carry on: 793 / 146

Going ahead to step 5:
When dividing 793 by 146, we get 5 with a remainder of 63.
Record the quotient 5 as the next digit in the result. 
Result so far: 455.0
Deduct 730 from 793 and we're left with 63.
Grab the next digit (5) from the dividend, add it to 63, then carry on: 635 / 146

Going ahead to step 6:
146 can be fit into 635 4 times, resulting in a remainder of 51.
The number 4 becomes the next digit in our result. 
Result so far: 4554.0
If we subtract 584 from 635, we get 51.
Bring next digit (7) of the dividend behind the 51 and repeat the process: 517 / 146

Step 7:
146 can be fit into 517 3 times, resulting in a remainder of 79.
Put 3 as the next digit of the answer. 
Result so far: 45543.0
Subtracting 438 from 517 leaves us with 79.
Bring next digit (0) of the dividend behind the 79 and repeat the process: 790 / 146

Let's proceed to step 8:
If we divide 790 by 146, we get 5 and a remainder of 60.
Write down 5 as next digit of the result. 
Result so far: 455435.0
Subtracting 730 from 790 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 9:
146 can be fit into 600 4 times, resulting in a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 455435.4
The remainder is 16 after subtracting 584 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 10:
146 can be fit into 160 1 times, resulting in a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 455435.41
If we take 146 away from 160, 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.

On to step 11:
If we divide 140 by 146, we get 0 and a remainder of 140.
Use 0 as the next digit of our solution. 
Result so far: 455435.41
Subtracting 0 from 140 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Moving on to step 12:
146 can be fit into 1400 9 times, resulting in a remainder of 86.
Record the quotient 9 as the next digit in the result. 
Result so far: 455435.4109
If we take 1314 away from 1400, we end up with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 13:
146 goes into 860 5 times with a remainder of 130.
Put 5 as the next digit of the answer. 
Result so far: 455435.41095
Deduct 730 from 860 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 14:
If we divide 1300 by 146, we get 8 and a remainder of 132.
The next digit of our result is 8. 
Result so far: 455435.410958
Subtract 1168 from 1300 to get 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

On to step 15:
When dividing 1320 by 146, we get 9 with a remainder of 6.
The next digit of our result is 9. 
Result so far: 455435.4109589
The remainder is 6 after subtracting 1314 from 1320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 16:
If we divide 60 by 146, we get 0 and a remainder of 60.
The next digit of our result is 0. 
Result so far: 455435.4109589
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final result is 455435.4109589 with a remainder of 6e-08.