We look at the division of 68640973 by 902 
The aim is to understand the frequency of 902 in 68640973.

Moving on to step 1:
902 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 902

Advancing to step 2:
902 goes into 68 0 times with a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 68, we end up with 68.
Append the next digit (6) from the dividend to 68 and continue with: 686 / 902

Step 3:
If we divide 686 by 902, we get 0 and a remainder of 686.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 686 and we're left with 686.
Bring next digit (4) of the dividend behind the 686 and repeat the process: 6864 / 902

Going ahead to step 4:
902 can be fit into 6864 7 times, resulting in a remainder of 550.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we subtract 6314 from 6864, we get 550.
Include the next digit (0) from the dividend after 550, then repeat: 5500 / 902

Step 5:
When dividing 5500 by 902, we get 6 with a remainder of 88.
Use 6 as the next digit of our solution. 
Result so far: 76.0
If we take 5412 away from 5500, we end up with 88.
Bring next digit (9) of the dividend behind the 88 and repeat the process: 889 / 902

Let's proceed to step 6:
If we divide 889 by 902, we get 0 and a remainder of 889.
The next digit of our result is 0. 
Result so far: 760.0
The remainder is 889 after subtracting 0 from 889.
Fetch the next digit (7) from the dividend, attach it to 889 and continue: 8897 / 902

On to step 7:
When dividing 8897 by 902, we get 9 with a remainder of 779.
The number 9 becomes the next digit in our result. 
Result so far: 7609.0
Subtracting 8118 from 8897 leaves us with 779.
Fetch the next digit (3) from the dividend, attach it to 779 and continue: 7793 / 902

Let's proceed to step 8:
902 goes into 7793 8 times with a remainder of 577.
The number 8 becomes the next digit in our result. 
Result so far: 76098.0
Subtract 7216 from 7793 to get 577.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5770, and continue the process.

On to step 9:
5770 divided by 902 is 6 with a remainder of 358.
The next digit of our result is 6. 
Result so far: 76098.6
If we take 5412 away from 5770, we end up with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

On to step 10:
When dividing 3580 by 902, we get 3 with a remainder of 874.
The number 3 becomes the next digit in our result. 
Result so far: 76098.63
Deduct 2706 from 3580 and we're left with 874.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8740, and continue the process.

Moving on to step 11:
902 can be fit into 8740 9 times, resulting in a remainder of 622.
Put 9 as the next digit of the answer. 
Result so far: 76098.639
Deduct 8118 from 8740 and we're left with 622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6220, and continue the process.

Let's proceed to step 12:
If we divide 6220 by 902, we get 6 and a remainder of 808.
Put 6 as the next digit of the answer. 
Result so far: 76098.6396
If we take 5412 away from 6220, we end up with 808.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8080, and continue the process.

Moving on to step 13:
902 goes into 8080 8 times with a remainder of 864.
Write down 8 as next digit of the result. 
Result so far: 76098.63968
Subtract 7216 from 8080 to get 864.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8640, and continue the process.

Advancing to step 14:
The number 902 fits into 8640 9 times, leaving a remainder of 522.
Write down 9 as next digit of the result. 
Result so far: 76098.639689
If we take 8118 away from 8640, we end up with 522.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5220, and continue the process.

Step 15:
If we divide 5220 by 902, we get 5 and a remainder of 710.
Write down 5 as next digit of the result. 
Result so far: 76098.6396895
If we subtract 4510 from 5220, we get 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7100, and continue the process.

Let's proceed to step 16:
902 can be fit into 7100 7 times, resulting in a remainder of 786.
The next digit of our result is 7. 
Result so far: 76098.63968957
The remainder is 786 after subtracting 6314 from 7100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7860, and continue the process.

After the division, we end up with 76098.63968957 and a remainder of 7.86e-07.