Let's divide 83399717 by 647
The aim is to understand the frequency of 647 in 83399717.

Going ahead to step 1:
647 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 647

On to step 2:
The number 647 fits into 83 0 times, leaving a remainder of 83.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 83 and we're left with 83.
Take the next digit (3) from the dividend and append it to 83, then repeat: 833 / 647

On to step 3:
When dividing 833 by 647, we get 1 with a remainder of 186.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 647 from 833 to get 186.
Fetch the next digit (9) from the dividend, attach it to 186 and continue: 1869 / 647

Step 4:
647 can be fit into 1869 2 times, resulting in a remainder of 575.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Deduct 1294 from 1869 and we're left with 575.
Bring next digit (9) of the dividend behind the 575 and repeat the process: 5759 / 647

On to step 5:
If we divide 5759 by 647, we get 8 and a remainder of 583.
Write down 8 as next digit of the result. 
Result so far: 128.0
If we subtract 5176 from 5759, we get 583.
Grab the next digit (7) from the dividend, add it to 583, then carry on: 5837 / 647

Advancing to step 6:
If we divide 5837 by 647, we get 9 and a remainder of 14.
Use 9 as the next digit of our solution. 
Result so far: 1289.0
Subtract 5823 from 5837 to get 14.
Include the next digit (1) from the dividend after 14, then repeat: 141 / 647

Moving on to step 7:
When dividing 141 by 647, we get 0 with a remainder of 141.
Write down 0 as next digit of the result. 
Result so far: 12890.0
If we subtract 0 from 141, we get 141.
Append the next digit (7) from the dividend to 141 and continue with: 1417 / 647

On to step 8:
If we divide 1417 by 647, we get 2 and a remainder of 123.
Put 2 as the next digit of the answer. 
Result so far: 128902.0
The remainder is 123 after subtracting 1294 from 1417.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Advancing to step 9:
647 can be fit into 1230 1 times, resulting in a remainder of 583.
The next digit of our result is 1. 
Result so far: 128902.1
If we subtract 647 from 1230, we get 583.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5830, and continue the process.

Let's proceed to step 10:
When dividing 5830 by 647, we get 9 with a remainder of 7.
The number 9 becomes the next digit in our result. 
Result so far: 128902.19
Subtracting 5823 from 5830 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 11:
647 goes into 70 0 times with a remainder of 70.
The next digit of our result is 0. 
Result so far: 128902.19
If we take 0 away from 70, 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 12:
When dividing 700 by 647, we get 1 with a remainder of 53.
Use 1 as the next digit of our solution. 
Result so far: 128902.1901
Deduct 647 from 700 and we're left with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Advancing to step 13:
530 divided by 647 is 0 with a remainder of 530.
Use 0 as the next digit of our solution. 
Result so far: 128902.1901
If we subtract 0 from 530, we get 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Moving on to step 14:
The number 647 fits into 5300 8 times, leaving a remainder of 124.
The number 8 becomes the next digit in our result. 
Result so far: 128902.190108
Subtract 5176 from 5300 to get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Going ahead to step 15:
When dividing 1240 by 647, we get 1 with a remainder of 593.
The next digit of our result is 1. 
Result so far: 128902.1901081
If we take 647 away from 1240, we end up with 593.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5930, and continue the process.

Step 16:
5930 divided by 647 is 9 with a remainder of 107.
Use 9 as the next digit of our solution. 
Result so far: 128902.19010819
Subtract 5823 from 5930 to get 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

The quotient of the division is 128902.19010819, and the remainder is 1.07e-07.