We look at the division of 3640620 by 850 
The aim is to understand the frequency of 850 in 3640620.

Step 1:
850 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 850

Going ahead to step 2:
36 divided by 850 is 0 with a remainder of 36.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 36, we end up with 36.
Bring next digit (4) of the dividend behind the 36 and repeat the process: 364 / 850

Step 3:
When dividing 364 by 850, we get 0 with a remainder of 364.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 364 to get 364.
Grab the next digit (0) from the dividend, add it to 364, then carry on: 3640 / 850

On to step 4:
If we divide 3640 by 850, we get 4 and a remainder of 240.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 3400 from 3640 leaves us with 240.
Take the next digit (6) from the dividend and append it to 240, then repeat: 2406 / 850

Step 5:
The number 850 fits into 2406 2 times, leaving a remainder of 706.
Record the quotient 2 as the next digit in the result. 
Result so far: 42.0
Subtract 1700 from 2406 to get 706.
Append the next digit (2) from the dividend to 706 and continue with: 7062 / 850

On to step 6:
850 goes into 7062 8 times with a remainder of 262.
The next digit of our result is 8. 
Result so far: 428.0
If we subtract 6800 from 7062, we get 262.
Include the next digit (0) from the dividend after 262, then repeat: 2620 / 850

On to step 7:
The number 850 fits into 2620 3 times, leaving a remainder of 70.
Record the quotient 3 as the next digit in the result. 
Result so far: 4283.0
If we take 2550 away from 2620, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 8:
850 can be fit into 700 0 times, resulting in a remainder of 700.
Put 0 as the next digit of the answer. 
Result so far: 4283.0
Subtract 0 from 700 to get 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Going ahead to step 9:
850 goes into 7000 8 times with a remainder of 200.
The number 8 becomes the next digit in our result. 
Result so far: 4283.08
Subtracting 6800 from 7000 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 10:
The number 850 fits into 2000 2 times, leaving a remainder of 300.
Write down 2 as next digit of the result. 
Result so far: 4283.082
The remainder is 300 after subtracting 1700 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Moving on to step 11:
3000 divided by 850 is 3 with a remainder of 450.
Record the quotient 3 as the next digit in the result. 
Result so far: 4283.0823
If we take 2550 away from 3000, we end up with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Going ahead to step 12:
4500 divided by 850 is 5 with a remainder of 250.
Record the quotient 5 as the next digit in the result. 
Result so far: 4283.08235
The remainder is 250 after subtracting 4250 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Going ahead to step 13:
850 can be fit into 2500 2 times, resulting in a remainder of 800.
Use 2 as the next digit of our solution. 
Result so far: 4283.082352
If we take 1700 away from 2500, we end up with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Let's proceed to step 14:
When dividing 8000 by 850, we get 9 with a remainder of 350.
The next digit of our result is 9. 
Result so far: 4283.0823529
Subtracting 7650 from 8000 leaves us with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Advancing to step 15:
850 can be fit into 3500 4 times, resulting in a remainder of 100.
Use 4 as the next digit of our solution. 
Result so far: 4283.08235294
Deduct 3400 from 3500 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

In conclusion, the division gives 4283.08235294 with a balance of 1e-07.