We look at the division of 93532621 by 902 
The aim is to understand the frequency of 902 in 93532621.

On to step 1:
902 goes into 9 0 times with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Bring next digit (3) of the dividend behind the 9 and repeat the process: 93 / 902

Going ahead to step 2:
902 can be fit into 93 0 times, resulting in a remainder of 93.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 93, we end up with 93.
Bring next digit (5) of the dividend behind the 93 and repeat the process: 935 / 902

On to step 3:
If we divide 935 by 902, we get 1 and a remainder of 33.
The next digit of our result is 1. 
Result so far: 1.0
If we take 902 away from 935, we end up with 33.
Append the next digit (3) from the dividend to 33 and continue with: 333 / 902

Step 4:
When dividing 333 by 902, we get 0 with a remainder of 333.
Put 0 as the next digit of the answer. 
Result so far: 10.0
The remainder is 333 after subtracting 0 from 333.
Take the next digit (2) from the dividend and append it to 333, then repeat: 3332 / 902

Going ahead to step 5:
902 goes into 3332 3 times with a remainder of 626.
Put 3 as the next digit of the answer. 
Result so far: 103.0
Deduct 2706 from 3332 and we're left with 626.
Take the next digit (6) from the dividend and append it to 626, then repeat: 6266 / 902

On to step 6:
902 goes into 6266 6 times with a remainder of 854.
Put 6 as the next digit of the answer. 
Result so far: 1036.0
If we take 5412 away from 6266, we end up with 854.
Grab the next digit (2) from the dividend, add it to 854, then carry on: 8542 / 902

Advancing to step 7:
902 can be fit into 8542 9 times, resulting in a remainder of 424.
Write down 9 as next digit of the result. 
Result so far: 10369.0
Subtract 8118 from 8542 to get 424.
Bring next digit (1) of the dividend behind the 424 and repeat the process: 4241 / 902

Let's proceed to step 8:
If we divide 4241 by 902, we get 4 and a remainder of 633.
Write down 4 as next digit of the result. 
Result so far: 103694.0
If we take 3608 away from 4241, we end up with 633.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6330, and continue the process.

Step 9:
902 goes into 6330 7 times with a remainder of 16.
Use 7 as the next digit of our solution. 
Result so far: 103694.7
If we take 6314 away from 6330, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 10:
The number 902 fits into 160 0 times, leaving a remainder of 160.
The number 0 becomes the next digit in our result. 
Result so far: 103694.7
If we subtract 0 from 160, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 11:
If we divide 1600 by 902, we get 1 and a remainder of 698.
Put 1 as the next digit of the answer. 
Result so far: 103694.701
If we take 902 away from 1600, we end up with 698.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6980, and continue the process.

Let's proceed to step 12:
If we divide 6980 by 902, we get 7 and a remainder of 666.
Write down 7 as next digit of the result. 
Result so far: 103694.7017
Subtracting 6314 from 6980 leaves us with 666.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6660, and continue the process.

Advancing to step 13:
When dividing 6660 by 902, we get 7 with a remainder of 346.
Use 7 as the next digit of our solution. 
Result so far: 103694.70177
The remainder is 346 after subtracting 6314 from 6660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

After the division, we end up with 103694.70177 and a remainder of 0.000346.