Let's divide 77721420 by 202
The aim is to understand the frequency of 202 in 77721420.

Going ahead to step 1:
The number 202 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 202

Advancing to step 2:
If we divide 77 by 202, we get 0 and a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 77 to get 77.
Grab the next digit (7) from the dividend, add it to 77, then carry on: 777 / 202

Going ahead to step 3:
202 goes into 777 3 times with a remainder of 171.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 606 away from 777, we end up with 171.
Bring next digit (2) of the dividend behind the 171 and repeat the process: 1712 / 202

On to step 4:
1712 divided by 202 is 8 with a remainder of 96.
Write down 8 as next digit of the result. 
Result so far: 38.0
Subtracting 1616 from 1712 leaves us with 96.
Include the next digit (1) from the dividend after 96, then repeat: 961 / 202

Advancing to step 5:
When dividing 961 by 202, we get 4 with a remainder of 153.
Write down 4 as next digit of the result. 
Result so far: 384.0
Subtract 808 from 961 to get 153.
Fetch the next digit (4) from the dividend, attach it to 153 and continue: 1534 / 202

Moving on to step 6:
The number 202 fits into 1534 7 times, leaving a remainder of 120.
The number 7 becomes the next digit in our result. 
Result so far: 3847.0
Deduct 1414 from 1534 and we're left with 120.
Append the next digit (2) from the dividend to 120 and continue with: 1202 / 202

Advancing to step 7:
If we divide 1202 by 202, we get 5 and a remainder of 192.
The number 5 becomes the next digit in our result. 
Result so far: 38475.0
Deduct 1010 from 1202 and we're left with 192.
Bring next digit (0) of the dividend behind the 192 and repeat the process: 1920 / 202

Step 8:
202 goes into 1920 9 times with a remainder of 102.
Use 9 as the next digit of our solution. 
Result so far: 384759.0
If we take 1818 away from 1920, we end up with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Moving on to step 9:
202 can be fit into 1020 5 times, resulting in a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 384759.5
If we take 1010 away from 1020, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
The number 202 fits into 100 0 times, leaving a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 384759.5
Deduct 0 from 100 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.

Step 11:
202 goes into 1000 4 times with a remainder of 192.
Use 4 as the next digit of our solution. 
Result so far: 384759.504
The remainder is 192 after subtracting 808 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

On to step 12:
The number 202 fits into 1920 9 times, leaving a remainder of 102.
Write down 9 as next digit of the result. 
Result so far: 384759.5049
Subtract 1818 from 1920 to get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

On to step 13:
The number 202 fits into 1020 5 times, leaving a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 384759.50495
The remainder is 10 after subtracting 1010 from 1020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 14:
100 divided by 202 is 0 with a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 384759.50495
The remainder is 100 after subtracting 0 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 15:
202 goes into 1000 4 times with a remainder of 192.
The next digit of our result is 4. 
Result so far: 384759.5049504
Deduct 808 from 1000 and we're left with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Going ahead to step 16:
202 goes into 1920 9 times with a remainder of 102.
The number 9 becomes the next digit in our result. 
Result so far: 384759.50495049
If we take 1818 away from 1920, we end up with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Our division results in 384759.50495049 with a remaining 1.02e-07.