We're dividing 57752921 by 146 
The aim is to understand the frequency of 146 in 57752921.

Advancing to step 1:
When dividing 5 by 146, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 146

Advancing to step 2:
If we divide 57 by 146, we get 0 and a remainder of 57.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 57 leaves us with 57.
Append the next digit (7) from the dividend to 57 and continue with: 577 / 146

Going ahead to step 3:
577 divided by 146 is 3 with a remainder of 139.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 438 away from 577, we end up with 139.
Append the next digit (5) from the dividend to 139 and continue with: 1395 / 146

Step 4:
146 can be fit into 1395 9 times, resulting in a remainder of 81.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
If we subtract 1314 from 1395, we get 81.
Include the next digit (2) from the dividend after 81, then repeat: 812 / 146

Going ahead to step 5:
146 goes into 812 5 times with a remainder of 82.
Use 5 as the next digit of our solution. 
Result so far: 395.0
Subtracting 730 from 812 leaves us with 82.
Grab the next digit (9) from the dividend, add it to 82, then carry on: 829 / 146

On to step 6:
When dividing 829 by 146, we get 5 with a remainder of 99.
Record the quotient 5 as the next digit in the result. 
Result so far: 3955.0
The remainder is 99 after subtracting 730 from 829.
Include the next digit (2) from the dividend after 99, then repeat: 992 / 146

Let's proceed to step 7:
If we divide 992 by 146, we get 6 and a remainder of 116.
Use 6 as the next digit of our solution. 
Result so far: 39556.0
If we subtract 876 from 992, we get 116.
Bring next digit (1) of the dividend behind the 116 and repeat the process: 1161 / 146

Moving on to step 8:
When dividing 1161 by 146, we get 7 with a remainder of 139.
Use 7 as the next digit of our solution. 
Result so far: 395567.0
Deduct 1022 from 1161 and we're left with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Let's proceed to step 9:
1390 divided by 146 is 9 with a remainder of 76.
Record the quotient 9 as the next digit in the result. 
Result so far: 395567.9
The remainder is 76 after subtracting 1314 from 1390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 10:
When dividing 760 by 146, we get 5 with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 395567.95
The remainder is 30 after subtracting 730 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 11:
300 divided by 146 is 2 with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 395567.952
If we subtract 292 from 300, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 12:
If we divide 80 by 146, we get 0 and a remainder of 80.
The next digit of our result is 0. 
Result so far: 395567.952
If we subtract 0 from 80, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 13:
If we divide 800 by 146, we get 5 and a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 395567.95205
The remainder is 70 after subtracting 730 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 14:
The number 146 fits into 700 4 times, leaving a remainder of 116.
Use 4 as the next digit of our solution. 
Result so far: 395567.952054
If we subtract 584 from 700, we get 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Advancing to step 15:
If we divide 1160 by 146, we get 7 and a remainder of 138.
The next digit of our result is 7. 
Result so far: 395567.9520547
If we subtract 1022 from 1160, we get 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Advancing to step 16:
When dividing 1380 by 146, we get 9 with a remainder of 66.
The next digit of our result is 9. 
Result so far: 395567.95205479
If we subtract 1314 from 1380, we 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.

The final outcome is 395567.95205479, with a leftover of 6.6e-08.