72407953 divided by 169 
The aim is to understand the frequency of 169 in 72407953.

On to step 1:
169 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 169

Going ahead to step 2:
169 can be fit into 72 0 times, resulting in a remainder of 72.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Include the next digit (4) from the dividend after 72, then repeat: 724 / 169

On to step 3:
169 goes into 724 4 times with a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 676 from 724 leaves us with 48.
Fetch the next digit (0) from the dividend, attach it to 48 and continue: 480 / 169

Advancing to step 4:
The number 169 fits into 480 2 times, leaving a remainder of 142.
Put 2 as the next digit of the answer. 
Result so far: 42.0
Subtract 338 from 480 to get 142.
Include the next digit (7) from the dividend after 142, then repeat: 1427 / 169

Let's proceed to step 5:
169 goes into 1427 8 times with a remainder of 75.
Write down 8 as next digit of the result. 
Result so far: 428.0
Subtracting 1352 from 1427 leaves us with 75.
Fetch the next digit (9) from the dividend, attach it to 75 and continue: 759 / 169

Advancing to step 6:
759 divided by 169 is 4 with a remainder of 83.
Use 4 as the next digit of our solution. 
Result so far: 4284.0
If we take 676 away from 759, we end up with 83.
Append the next digit (5) from the dividend to 83 and continue with: 835 / 169

Let's proceed to step 7:
When dividing 835 by 169, we get 4 with a remainder of 159.
Use 4 as the next digit of our solution. 
Result so far: 42844.0
If we take 676 away from 835, we end up with 159.
Fetch the next digit (3) from the dividend, attach it to 159 and continue: 1593 / 169

On to step 8:
If we divide 1593 by 169, we get 9 and a remainder of 72.
Put 9 as the next digit of the answer. 
Result so far: 428449.0
If we take 1521 away from 1593, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 9:
The number 169 fits into 720 4 times, leaving a remainder of 44.
Record the quotient 4 as the next digit in the result. 
Result so far: 428449.4
Subtracting 676 from 720 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 10:
When dividing 440 by 169, we get 2 with a remainder of 102.
The number 2 becomes the next digit in our result. 
Result so far: 428449.42
Subtracting 338 from 440 leaves us 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 11:
If we divide 1020 by 169, we get 6 and a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 428449.426
Subtracting 1014 from 1020 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 12:
169 goes into 60 0 times with a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 428449.426
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 13:
169 goes into 600 3 times with a remainder of 93.
The number 3 becomes the next digit in our result. 
Result so far: 428449.42603
Deduct 507 from 600 and we're left with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Let's proceed to step 14:
169 can be fit into 930 5 times, resulting in a remainder of 85.
Put 5 as the next digit of the answer. 
Result so far: 428449.426035
Subtract 845 from 930 to get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 15:
The number 169 fits into 850 5 times, leaving a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 428449.4260355
If we take 845 away from 850, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final result is 428449.4260355 with a remainder of 5e-08.