We're dividing 45042578 by 356 
The aim is to understand the frequency of 356 in 45042578.

On to step 1:
356 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 356

On to step 2:
45 divided by 356 is 0 with a remainder of 45.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 45 and we're left with 45.
Append the next digit (0) from the dividend to 45 and continue with: 450 / 356

Let's proceed to step 3:
356 can be fit into 450 1 times, resulting in a remainder of 94.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 356 from 450, we get 94.
Grab the next digit (4) from the dividend, add it to 94, then carry on: 944 / 356

Moving on to step 4:
356 can be fit into 944 2 times, resulting in a remainder of 232.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtract 712 from 944 to get 232.
Include the next digit (2) from the dividend after 232, then repeat: 2322 / 356

Advancing to step 5:
The number 356 fits into 2322 6 times, leaving a remainder of 186.
Put 6 as the next digit of the answer. 
Result so far: 126.0
If we take 2136 away from 2322, we end up with 186.
Fetch the next digit (5) from the dividend, attach it to 186 and continue: 1865 / 356

Let's proceed to step 6:
1865 divided by 356 is 5 with a remainder of 85.
Use 5 as the next digit of our solution. 
Result so far: 1265.0
The remainder is 85 after subtracting 1780 from 1865.
Append the next digit (7) from the dividend to 85 and continue with: 857 / 356

Moving on to step 7:
356 can be fit into 857 2 times, resulting in a remainder of 145.
Put 2 as the next digit of the answer. 
Result so far: 12652.0
If we take 712 away from 857, we end up with 145.
Take the next digit (8) from the dividend and append it to 145, then repeat: 1458 / 356

Step 8:
356 can be fit into 1458 4 times, resulting in a remainder of 34.
Put 4 as the next digit of the answer. 
Result so far: 126524.0
Deduct 1424 from 1458 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 9:
340 divided by 356 is 0 with a remainder of 340.
The next digit of our result is 0. 
Result so far: 126524.0
If we subtract 0 from 340, we get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Going ahead to step 10:
The number 356 fits into 3400 9 times, leaving a remainder of 196.
Put 9 as the next digit of the answer. 
Result so far: 126524.09
If we subtract 3204 from 3400, we get 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Step 11:
1960 divided by 356 is 5 with a remainder of 180.
Record the quotient 5 as the next digit in the result. 
Result so far: 126524.095
If we take 1780 away from 1960, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 12:
If we divide 1800 by 356, we get 5 and a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 126524.0955
The remainder is 20 after subtracting 1780 from 1800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Our division results in 126524.0955 with a remaining 0.0002.