We divide 81161603 by 601
The aim is to understand the frequency of 601 in 81161603.

Going ahead to step 1:
601 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 601

On to step 2:
601 goes into 81 0 times with a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Grab the next digit (1) from the dividend, add it to 81, then carry on: 811 / 601

On to step 3:
601 goes into 811 1 times with a remainder of 210.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 601 from 811 to get 210.
Append the next digit (6) from the dividend to 210 and continue with: 2106 / 601

Going ahead to step 4:
601 goes into 2106 3 times with a remainder of 303.
Use 3 as the next digit of our solution. 
Result so far: 13.0
The remainder is 303 after subtracting 1803 from 2106.
Take the next digit (1) from the dividend and append it to 303, then repeat: 3031 / 601

Going ahead to step 5:
If we divide 3031 by 601, we get 5 and a remainder of 26.
Use 5 as the next digit of our solution. 
Result so far: 135.0
Subtract 3005 from 3031 to get 26.
Fetch the next digit (6) from the dividend, attach it to 26 and continue: 266 / 601

Going ahead to step 6:
If we divide 266 by 601, we get 0 and a remainder of 266.
The next digit of our result is 0. 
Result so far: 1350.0
Deduct 0 from 266 and we're left with 266.
Append the next digit (0) from the dividend to 266 and continue with: 2660 / 601

Let's proceed to step 7:
If we divide 2660 by 601, we get 4 and a remainder of 256.
Write down 4 as next digit of the result. 
Result so far: 13504.0
Subtracting 2404 from 2660 leaves us with 256.
Fetch the next digit (3) from the dividend, attach it to 256 and continue: 2563 / 601

Let's proceed to step 8:
If we divide 2563 by 601, we get 4 and a remainder of 159.
The number 4 becomes the next digit in our result. 
Result so far: 135044.0
Deduct 2404 from 2563 and we're left with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Going ahead to step 9:
If we divide 1590 by 601, we get 2 and a remainder of 388.
Write down 2 as next digit of the result. 
Result so far: 135044.2
If we subtract 1202 from 1590, we get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Step 10:
The number 601 fits into 3880 6 times, leaving a remainder of 274.
The next digit of our result is 6. 
Result so far: 135044.26
Subtracting 3606 from 3880 leaves us with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Let's proceed to step 11:
If we divide 2740 by 601, we get 4 and a remainder of 336.
Write down 4 as next digit of the result. 
Result so far: 135044.264
If we take 2404 away from 2740, we end up with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

On to step 12:
601 goes into 3360 5 times with a remainder of 355.
The next digit of our result is 5. 
Result so far: 135044.2645
If we take 3005 away from 3360, we end up with 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

Going ahead to step 13:
3550 divided by 601 is 5 with a remainder of 545.
Use 5 as the next digit of our solution. 
Result so far: 135044.26455
If we take 3005 away from 3550, we end up with 545.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

Our division results in 135044.26455 with a remaining 0.000545.