We're dividing 66426056 by 146 
The aim is to understand the frequency of 146 in 66426056.

On to step 1:
146 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 146

On to step 2:
146 can be fit into 66 0 times, resulting in a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Append the next digit (4) from the dividend to 66 and continue with: 664 / 146

Let's proceed to step 3:
146 can be fit into 664 4 times, resulting in a remainder of 80.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 584 from 664 leaves us with 80.
Fetch the next digit (2) from the dividend, attach it to 80 and continue: 802 / 146

On to step 4:
146 goes into 802 5 times with a remainder of 72.
Put 5 as the next digit of the answer. 
Result so far: 45.0
If we subtract 730 from 802, we get 72.
Fetch the next digit (6) from the dividend, attach it to 72 and continue: 726 / 146

Going ahead to step 5:
If we divide 726 by 146, we get 4 and a remainder of 142.
Record the quotient 4 as the next digit in the result. 
Result so far: 454.0
Deduct 584 from 726 and we're left with 142.
Bring next digit (0) of the dividend behind the 142 and repeat the process: 1420 / 146

Let's proceed to step 6:
1420 divided by 146 is 9 with a remainder of 106.
Write down 9 as next digit of the result. 
Result so far: 4549.0
If we take 1314 away from 1420, we end up with 106.
Bring next digit (5) of the dividend behind the 106 and repeat the process: 1065 / 146

Going ahead to step 7:
When dividing 1065 by 146, we get 7 with a remainder of 43.
The next digit of our result is 7. 
Result so far: 45497.0
If we take 1022 away from 1065, we end up with 43.
Bring next digit (6) of the dividend behind the 43 and repeat the process: 436 / 146

Step 8:
436 divided by 146 is 2 with a remainder of 144.
The next digit of our result is 2. 
Result so far: 454972.0
Subtracting 292 from 436 leaves us with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Step 9:
When dividing 1440 by 146, we get 9 with a remainder of 126.
Write down 9 as next digit of the result. 
Result so far: 454972.9
The remainder is 126 after subtracting 1314 from 1440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

On to step 10:
1260 divided by 146 is 8 with a remainder of 92.
Put 8 as the next digit of the answer. 
Result so far: 454972.98
The remainder is 92 after subtracting 1168 from 1260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

On to step 11:
When dividing 920 by 146, we get 6 with a remainder of 44.
Put 6 as the next digit of the answer. 
Result so far: 454972.986
If we take 876 away from 920, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 12:
146 can be fit into 440 3 times, resulting in a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 454972.9863
Deduct 438 from 440 and we're left 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.

Advancing to step 13:
20 divided by 146 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 454972.9863
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 14:
200 divided by 146 is 1 with a remainder of 54.
The number 1 becomes the next digit in our result. 
Result so far: 454972.986301
Subtract 146 from 200 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 15:
The number 146 fits into 540 3 times, leaving a remainder of 102.
Write down 3 as next digit of the result. 
Result so far: 454972.9863013
If we take 438 away from 540, we end up with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Moving on to step 16:
146 goes into 1020 6 times with a remainder of 144.
Record the quotient 6 as the next digit in the result. 
Result so far: 454972.98630136
Subtract 876 from 1020 to get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

The final outcome is 454972.98630136, with a leftover of 1.44e-07.