Let's divide 71383857 by 600
The aim is to understand the frequency of 600 in 71383857.

On to step 1:
When dividing 7 by 600, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 600

Advancing to step 2:
The number 600 fits into 71 0 times, leaving a remainder of 71.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 71, we end up with 71.
Include the next digit (3) from the dividend after 71, then repeat: 713 / 600

Let's proceed to step 3:
600 can be fit into 713 1 times, resulting in a remainder of 113.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 600 from 713, we get 113.
Append the next digit (8) from the dividend to 113 and continue with: 1138 / 600

Moving on to step 4:
The number 600 fits into 1138 1 times, leaving a remainder of 538.
The next digit of our result is 1. 
Result so far: 11.0
Subtract 600 from 1138 to get 538.
Grab the next digit (3) from the dividend, add it to 538, then carry on: 5383 / 600

Step 5:
The number 600 fits into 5383 8 times, leaving a remainder of 583.
Write down 8 as next digit of the result. 
Result so far: 118.0
Subtracting 4800 from 5383 leaves us with 583.
Bring next digit (8) of the dividend behind the 583 and repeat the process: 5838 / 600

Advancing to step 6:
The number 600 fits into 5838 9 times, leaving a remainder of 438.
Record the quotient 9 as the next digit in the result. 
Result so far: 1189.0
If we take 5400 away from 5838, we end up with 438.
Bring next digit (5) of the dividend behind the 438 and repeat the process: 4385 / 600

On to step 7:
If we divide 4385 by 600, we get 7 and a remainder of 185.
Record the quotient 7 as the next digit in the result. 
Result so far: 11897.0
The remainder is 185 after subtracting 4200 from 4385.
Bring next digit (7) of the dividend behind the 185 and repeat the process: 1857 / 600

Advancing to step 8:
600 can be fit into 1857 3 times, resulting in a remainder of 57.
The number 3 becomes the next digit in our result. 
Result so far: 118973.0
Deduct 1800 from 1857 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 9:
600 can be fit into 570 0 times, resulting in a remainder of 570.
Use 0 as the next digit of our solution. 
Result so far: 118973.0
Subtract 0 from 570 to get 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Step 10:
The number 600 fits into 5700 9 times, leaving a remainder of 300.
The next digit of our result is 9. 
Result so far: 118973.09
If we take 5400 away from 5700, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 11:
The number 600 fits into 3000 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 118973.095
Subtract 3000 from 3000 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 12:
If we divide 0 by 600, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 118973.095
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 13:
The number 600 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 118973.095
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 118973.095 with a remainder of 0.0.