We look at the division of 77523571 by 702 
The aim is to understand the frequency of 702 in 77523571.

On to step 1:
702 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 702

Step 2:
77 divided by 702 is 0 with a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Fetch the next digit (5) from the dividend, attach it to 77 and continue: 775 / 702

On to step 3:
The number 702 fits into 775 1 times, leaving a remainder of 73.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 702 from 775, we get 73.
Grab the next digit (2) from the dividend, add it to 73, then carry on: 732 / 702

On to step 4:
When dividing 732 by 702, we get 1 with a remainder of 30.
Use 1 as the next digit of our solution. 
Result so far: 11.0
If we take 702 away from 732, we end up with 30.
Bring next digit (3) of the dividend behind the 30 and repeat the process: 303 / 702

Step 5:
702 goes into 303 0 times with a remainder of 303.
The next digit of our result is 0. 
Result so far: 110.0
If we take 0 away from 303, we end up with 303.
Take the next digit (5) from the dividend and append it to 303, then repeat: 3035 / 702

Moving on to step 6:
3035 divided by 702 is 4 with a remainder of 227.
Use 4 as the next digit of our solution. 
Result so far: 1104.0
Subtract 2808 from 3035 to get 227.
Include the next digit (7) from the dividend after 227, then repeat: 2277 / 702

On to step 7:
If we divide 2277 by 702, we get 3 and a remainder of 171.
Write down 3 as next digit of the result. 
Result so far: 11043.0
If we take 2106 away from 2277, we end up with 171.
Grab the next digit (1) from the dividend, add it to 171, then carry on: 1711 / 702

Going ahead to step 8:
The number 702 fits into 1711 2 times, leaving a remainder of 307.
The next digit of our result is 2. 
Result so far: 110432.0
If we take 1404 away from 1711, we end up with 307.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3070, and continue the process.

Let's proceed to step 9:
702 goes into 3070 4 times with a remainder of 262.
The number 4 becomes the next digit in our result. 
Result so far: 110432.4
If we subtract 2808 from 3070, we get 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Going ahead to step 10:
702 can be fit into 2620 3 times, resulting in a remainder of 514.
Use 3 as the next digit of our solution. 
Result so far: 110432.43
Subtract 2106 from 2620 to get 514.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

Advancing to step 11:
702 can be fit into 5140 7 times, resulting in a remainder of 226.
Use 7 as the next digit of our solution. 
Result so far: 110432.437
Subtract 4914 from 5140 to get 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

On to step 12:
702 goes into 2260 3 times with a remainder of 154.
Use 3 as the next digit of our solution. 
Result so far: 110432.4373
The remainder is 154 after subtracting 2106 from 2260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Moving on to step 13:
702 can be fit into 1540 2 times, resulting in a remainder of 136.
Record the quotient 2 as the next digit in the result. 
Result so far: 110432.43732
The remainder is 136 after subtracting 1404 from 1540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Let's proceed to step 14:
702 goes into 1360 1 times with a remainder of 658.
Put 1 as the next digit of the answer. 
Result so far: 110432.437321
If we take 702 away from 1360, we end up with 658.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6580, and continue the process.

Step 15:
702 can be fit into 6580 9 times, resulting in a remainder of 262.
Use 9 as the next digit of our solution. 
Result so far: 110432.4373219
If we take 6318 away from 6580, we end up with 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Moving on to step 16:
702 can be fit into 2620 3 times, resulting in a remainder of 514.
Put 3 as the next digit of the answer. 
Result so far: 110432.43732193
The remainder is 514 after subtracting 2106 from 2620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

The final outcome is 110432.43732193, with a leftover of 5.14e-07.