38736901 ÷ 45 
The aim is to understand the frequency of 45 in 38736901.

Moving on to step 1:
When dividing 3 by 45, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (8) from the dividend, attach it to 3 and continue: 38 / 45

Step 2:
45 can be fit into 38 0 times, resulting in a remainder of 38.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 38 leaves us with 38.
Bring next digit (7) of the dividend behind the 38 and repeat the process: 387 / 45

Advancing to step 3:
387 divided by 45 is 8 with a remainder of 27.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtract 360 from 387 to get 27.
Grab the next digit (3) from the dividend, add it to 27, then carry on: 273 / 45

Advancing to step 4:
45 can be fit into 273 6 times, resulting in a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 86.0
If we subtract 270 from 273, we get 3.
Take the next digit (6) from the dividend and append it to 3, then repeat: 36 / 45

Step 5:
The number 45 fits into 36 0 times, leaving a remainder of 36.
Record the quotient 0 as the next digit in the result. 
Result so far: 860.0
Subtract 0 from 36 to get 36.
Take the next digit (9) from the dividend and append it to 36, then repeat: 369 / 45

Step 6:
When dividing 369 by 45, we get 8 with a remainder of 9.
Write down 8 as next digit of the result. 
Result so far: 8608.0
Subtracting 360 from 369 leaves us with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 45

On to step 7:
If we divide 90 by 45, we get 2 and a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 86082.0
Subtracting 90 from 90 leaves us with 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 45

Advancing to step 8:
The number 45 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 860820.0
Subtract 0 from 1 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 9:
45 can be fit into 10 0 times, resulting in a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 860820.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
The number 45 fits into 100 2 times, leaving a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 860820.02
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 11:
When dividing 100 by 45, we get 2 with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 860820.022
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

In conclusion, the division gives 860820.022 with a balance of 0.001.