We're dividing 43770190 by 85 
The aim is to understand the frequency of 85 in 43770190.

Let's proceed to step 1:
The number 85 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 85

On to step 2:
The number 85 fits into 43 0 times, leaving a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 43, we end up with 43.
Include the next digit (7) from the dividend after 43, then repeat: 437 / 85

Going ahead to step 3:
85 can be fit into 437 5 times, resulting in a remainder of 12.
The next digit of our result is 5. 
Result so far: 5.0
If we subtract 425 from 437, we get 12.
Bring next digit (7) of the dividend behind the 12 and repeat the process: 127 / 85

On to step 4:
85 goes into 127 1 times with a remainder of 42.
Use 1 as the next digit of our solution. 
Result so far: 51.0
If we take 85 away from 127, we end up with 42.
Fetch the next digit (0) from the dividend, attach it to 42 and continue: 420 / 85

On to step 5:
85 can be fit into 420 4 times, resulting in a remainder of 80.
Put 4 as the next digit of the answer. 
Result so far: 514.0
Subtract 340 from 420 to get 80.
Bring next digit (1) of the dividend behind the 80 and repeat the process: 801 / 85

Moving on to step 6:
When dividing 801 by 85, we get 9 with a remainder of 36.
Use 9 as the next digit of our solution. 
Result so far: 5149.0
Subtract 765 from 801 to get 36.
Append the next digit (9) from the dividend to 36 and continue with: 369 / 85

Moving on to step 7:
85 can be fit into 369 4 times, resulting in a remainder of 29.
The number 4 becomes the next digit in our result. 
Result so far: 51494.0
Subtract 340 from 369 to get 29.
Grab the next digit (0) from the dividend, add it to 29, then carry on: 290 / 85

Going ahead to step 8:
When dividing 290 by 85, we get 3 with a remainder of 35.
Record the quotient 3 as the next digit in the result. 
Result so far: 514943.0
Subtracting 255 from 290 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 9:
85 can be fit into 350 4 times, resulting in a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 514943.4
Subtracting 340 from 350 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.

On to step 10:
100 divided by 85 is 1 with a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 514943.41
The remainder is 15 after subtracting 85 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 11:
85 can be fit into 150 1 times, resulting in a remainder of 65.
Record the quotient 1 as the next digit in the result. 
Result so far: 514943.411
Subtracting 85 from 150 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

After the division, we end up with 514943.411 and a remainder of 0.0065.