276431 divided by 45 
The aim is to understand the frequency of 45 in 276431.

Moving on to step 1:
When dividing 2 by 45, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (7) from the dividend and append it to 2, then repeat: 27 / 45

On to step 2:
If we divide 27 by 45, we get 0 and a remainder of 27.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 27 after subtracting 0 from 27.
Grab the next digit (6) from the dividend, add it to 27, then carry on: 276 / 45

Advancing to step 3:
If we divide 276 by 45, we get 6 and a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtract 270 from 276 to get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 45

Advancing to step 4:
When dividing 64 by 45, we get 1 with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 61.0
If we subtract 45 from 64, we get 19.
Bring next digit (3) of the dividend behind the 19 and repeat the process: 193 / 45

Advancing to step 5:
When dividing 193 by 45, we get 4 with a remainder of 13.
Record the quotient 4 as the next digit in the result. 
Result so far: 614.0
Deduct 180 from 193 and we're left with 13.
Append the next digit (1) from the dividend to 13 and continue with: 131 / 45

Moving on to step 6:
The number 45 fits into 131 2 times, leaving a remainder of 41.
The number 2 becomes the next digit in our result. 
Result so far: 6142.0
Subtracting 90 from 131 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 7:
When dividing 410 by 45, we get 9 with a remainder of 5.
The number 9 becomes the next digit in our result. 
Result so far: 6142.9
If we take 405 away from 410, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
45 goes into 50 1 times with a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 6142.91
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 9:
45 goes into 50 1 times with a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 6142.911
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final result is 6142.911 with a remainder of 0.0005.