Let's divide 42055258 by 406
The aim is to understand the frequency of 406 in 42055258.

Step 1:
4 divided by 406 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 406

Going ahead to step 2:
If we divide 42 by 406, we get 0 and a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Grab the next digit (0) from the dividend, add it to 42, then carry on: 420 / 406

Let's proceed to step 3:
406 goes into 420 1 times with a remainder of 14.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 14 after subtracting 406 from 420.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 406

Moving on to step 4:
406 goes into 145 0 times with a remainder of 145.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 145 leaves us with 145.
Fetch the next digit (5) from the dividend, attach it to 145 and continue: 1455 / 406

Going ahead to step 5:
When dividing 1455 by 406, we get 3 with a remainder of 237.
Write down 3 as next digit of the result. 
Result so far: 103.0
Deduct 1218 from 1455 and we're left with 237.
Take the next digit (2) from the dividend and append it to 237, then repeat: 2372 / 406

Advancing to step 6:
2372 divided by 406 is 5 with a remainder of 342.
Use 5 as the next digit of our solution. 
Result so far: 1035.0
If we subtract 2030 from 2372, we get 342.
Take the next digit (5) from the dividend and append it to 342, then repeat: 3425 / 406

Moving on to step 7:
406 can be fit into 3425 8 times, resulting in a remainder of 177.
Use 8 as the next digit of our solution. 
Result so far: 10358.0
The remainder is 177 after subtracting 3248 from 3425.
Append the next digit (8) from the dividend to 177 and continue with: 1778 / 406

Moving on to step 8:
406 goes into 1778 4 times with a remainder of 154.
Record the quotient 4 as the next digit in the result. 
Result so far: 103584.0
Deduct 1624 from 1778 and we're left with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Moving on to step 9:
When dividing 1540 by 406, we get 3 with a remainder of 322.
Put 3 as the next digit of the answer. 
Result so far: 103584.3
Subtract 1218 from 1540 to get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Going ahead to step 10:
3220 divided by 406 is 7 with a remainder of 378.
Write down 7 as next digit of the result. 
Result so far: 103584.37
If we take 2842 away from 3220, we end up with 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Step 11:
The number 406 fits into 3780 9 times, leaving a remainder of 126.
Put 9 as the next digit of the answer. 
Result so far: 103584.379
Deduct 3654 from 3780 and we're left with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Step 12:
406 can be fit into 1260 3 times, resulting in a remainder of 42.
Record the quotient 3 as the next digit in the result. 
Result so far: 103584.3793
Deduct 1218 from 1260 and we're left 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.

Going ahead to step 13:
406 goes into 420 1 times with a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 103584.37931
If we subtract 406 from 420, we 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.

Moving on to step 14:
140 divided by 406 is 0 with a remainder of 140.
The number 0 becomes the next digit in our result. 
Result so far: 103584.37931
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.

Step 15:
If we divide 1400 by 406, we get 3 and a remainder of 182.
The number 3 becomes the next digit in our result. 
Result so far: 103584.3793103
If we take 1218 away from 1400, we end up with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Moving on to step 16:
If we divide 1820 by 406, we get 4 and a remainder of 196.
Put 4 as the next digit of the answer. 
Result so far: 103584.37931034
The remainder is 196 after subtracting 1624 from 1820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

After the division, we end up with 103584.37931034 and a remainder of 1.96e-07.