Let's divide 39983660 by 485
The aim is to understand the frequency of 485 in 39983660.

On to step 1:
The number 485 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 485

Let's proceed to step 2:
The number 485 fits into 39 0 times, leaving a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Take the next digit (9) from the dividend and append it to 39, then repeat: 399 / 485

Going ahead to step 3:
When dividing 399 by 485, we get 0 with a remainder of 399.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 399 leaves us with 399.
Bring next digit (8) of the dividend behind the 399 and repeat the process: 3998 / 485

Going ahead to step 4:
If we divide 3998 by 485, we get 8 and a remainder of 118.
Use 8 as the next digit of our solution. 
Result so far: 8.0
The remainder is 118 after subtracting 3880 from 3998.
Bring next digit (3) of the dividend behind the 118 and repeat the process: 1183 / 485

Advancing to step 5:
When dividing 1183 by 485, we get 2 with a remainder of 213.
The number 2 becomes the next digit in our result. 
Result so far: 82.0
If we take 970 away from 1183, we end up with 213.
Grab the next digit (6) from the dividend, add it to 213, then carry on: 2136 / 485

Going ahead to step 6:
485 goes into 2136 4 times with a remainder of 196.
Record the quotient 4 as the next digit in the result. 
Result so far: 824.0
The remainder is 196 after subtracting 1940 from 2136.
Take the next digit (6) from the dividend and append it to 196, then repeat: 1966 / 485

Let's proceed to step 7:
When dividing 1966 by 485, we get 4 with a remainder of 26.
The next digit of our result is 4. 
Result so far: 8244.0
If we subtract 1940 from 1966, we get 26.
Take the next digit (0) from the dividend and append it to 26, then repeat: 260 / 485

Let's proceed to step 8:
If we divide 260 by 485, we get 0 and a remainder of 260.
Record the quotient 0 as the next digit in the result. 
Result so far: 82440.0
Subtract 0 from 260 to get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 9:
The number 485 fits into 2600 5 times, leaving a remainder of 175.
The next digit of our result is 5. 
Result so far: 82440.5
Subtracting 2425 from 2600 leaves us with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

On to step 10:
When dividing 1750 by 485, we get 3 with a remainder of 295.
Use 3 as the next digit of our solution. 
Result so far: 82440.53
Subtracting 1455 from 1750 leaves us with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Moving on to step 11:
If we divide 2950 by 485, we get 6 and a remainder of 40.
The next digit of our result is 6. 
Result so far: 82440.536
If we take 2910 away from 2950, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 12:
485 goes into 400 0 times with a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 82440.536
If we subtract 0 from 400, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 13:
4000 divided by 485 is 8 with a remainder of 120.
Record the quotient 8 as the next digit in the result. 
Result so far: 82440.53608
Subtract 3880 from 4000 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 14:
485 goes into 1200 2 times with a remainder of 230.
The number 2 becomes the next digit in our result. 
Result so far: 82440.536082
Subtracting 970 from 1200 leaves us with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Step 15:
When dividing 2300 by 485, we get 4 with a remainder of 360.
Write down 4 as next digit of the result. 
Result so far: 82440.5360824
If we subtract 1940 from 2300, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

On to step 16:
485 goes into 3600 7 times with a remainder of 205.
Write down 7 as next digit of the result. 
Result so far: 82440.53608247
If we take 3395 away from 3600, we end up with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

After the division, we end up with 82440.53608247 and a remainder of 2.05e-07.