We divide 6911980 by 161
The aim is to understand the frequency of 161 in 6911980.

Step 1:
If we divide 6 by 161, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (9) from the dividend, add it to 6, then carry on: 69 / 161

Moving on to step 2:
161 can be fit into 69 0 times, resulting in a remainder of 69.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 69, we end up with 69.
Bring next digit (1) of the dividend behind the 69 and repeat the process: 691 / 161

Moving on to step 3:
161 can be fit into 691 4 times, resulting in a remainder of 47.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 47 after subtracting 644 from 691.
Fetch the next digit (1) from the dividend, attach it to 47 and continue: 471 / 161

Going ahead to step 4:
When dividing 471 by 161, we get 2 with a remainder of 149.
Put 2 as the next digit of the answer. 
Result so far: 42.0
Subtract 322 from 471 to get 149.
Append the next digit (9) from the dividend to 149 and continue with: 1499 / 161

Going ahead to step 5:
The number 161 fits into 1499 9 times, leaving a remainder of 50.
Write down 9 as next digit of the result. 
Result so far: 429.0
The remainder is 50 after subtracting 1449 from 1499.
Take the next digit (8) from the dividend and append it to 50, then repeat: 508 / 161

On to step 6:
508 divided by 161 is 3 with a remainder of 25.
Write down 3 as next digit of the result. 
Result so far: 4293.0
If we take 483 away from 508, we end up with 25.
Grab the next digit (0) from the dividend, add it to 25, then carry on: 250 / 161

Advancing to step 7:
If we divide 250 by 161, we get 1 and a remainder of 89.
Record the quotient 1 as the next digit in the result. 
Result so far: 42931.0
Subtracting 161 from 250 leaves us with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

On to step 8:
When dividing 890 by 161, we get 5 with a remainder of 85.
Write down 5 as next digit of the result. 
Result so far: 42931.5
If we take 805 away from 890, we end up with 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 9:
When dividing 850 by 161, we get 5 with a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 42931.55
If we take 805 away from 850, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

In conclusion, the division gives 42931.55 with a balance of 0.045.