We divide 371921 by 45
The aim is to understand the frequency of 45 in 371921.

Let's proceed to step 1:
3 divided by 45 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 45

Step 2:
45 goes into 37 0 times with a remainder of 37.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 37 after subtracting 0 from 37.
Fetch the next digit (1) from the dividend, attach it to 37 and continue: 371 / 45

Let's proceed to step 3:
45 goes into 371 8 times with a remainder of 11.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Deduct 360 from 371 and we're left with 11.
Grab the next digit (9) from the dividend, add it to 11, then carry on: 119 / 45

Moving on to step 4:
119 divided by 45 is 2 with a remainder of 29.
Write down 2 as next digit of the result. 
Result so far: 82.0
The remainder is 29 after subtracting 90 from 119.
Include the next digit (2) from the dividend after 29, then repeat: 292 / 45

On to step 5:
When dividing 292 by 45, we get 6 with a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 826.0
If we take 270 away from 292, we end up with 22.
Fetch the next digit (1) from the dividend, attach it to 22 and continue: 221 / 45

Advancing to step 6:
If we divide 221 by 45, we get 4 and a remainder of 41.
Use 4 as the next digit of our solution. 
Result so far: 8264.0
Subtracting 180 from 221 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.

Let's proceed to step 7:
410 divided by 45 is 9 with a remainder of 5.
The number 9 becomes the next digit in our result. 
Result so far: 8264.9
If we subtract 405 from 410, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
50 divided by 45 is 1 with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 8264.91
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
45 goes into 50 1 times with a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 8264.911
Subtract 45 from 50 to get 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 outcome is 8264.911, with a leftover of 0.0005.