We look at the division of 46978973 by 161 
The aim is to understand the frequency of 161 in 46978973.

Let's proceed to step 1:
161 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (6) of the dividend behind the 4 and repeat the process: 46 / 161

Let's proceed to step 2:
When dividing 46 by 161, we get 0 with a remainder of 46.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 46 after subtracting 0 from 46.
Include the next digit (9) from the dividend after 46, then repeat: 469 / 161

On to step 3:
If we divide 469 by 161, we get 2 and a remainder of 147.
The next digit of our result is 2. 
Result so far: 2.0
If we take 322 away from 469, we end up with 147.
Include the next digit (7) from the dividend after 147, then repeat: 1477 / 161

On to step 4:
161 can be fit into 1477 9 times, resulting in a remainder of 28.
The number 9 becomes the next digit in our result. 
Result so far: 29.0
If we subtract 1449 from 1477, we get 28.
Append the next digit (8) from the dividend to 28 and continue with: 288 / 161

Moving on to step 5:
The number 161 fits into 288 1 times, leaving a remainder of 127.
Write down 1 as next digit of the result. 
Result so far: 291.0
The remainder is 127 after subtracting 161 from 288.
Fetch the next digit (9) from the dividend, attach it to 127 and continue: 1279 / 161

Step 6:
161 can be fit into 1279 7 times, resulting in a remainder of 152.
Record the quotient 7 as the next digit in the result. 
Result so far: 2917.0
Subtracting 1127 from 1279 leaves us with 152.
Grab the next digit (7) from the dividend, add it to 152, then carry on: 1527 / 161

On to step 7:
1527 divided by 161 is 9 with a remainder of 78.
Write down 9 as next digit of the result. 
Result so far: 29179.0
If we subtract 1449 from 1527, we get 78.
Fetch the next digit (3) from the dividend, attach it to 78 and continue: 783 / 161

Moving on to step 8:
If we divide 783 by 161, we get 4 and a remainder of 139.
The next digit of our result is 4. 
Result so far: 291794.0
Subtracting 644 from 783 leaves us with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

On to step 9:
When dividing 1390 by 161, we get 8 with a remainder of 102.
The number 8 becomes the next digit in our result. 
Result so far: 291794.8
If we subtract 1288 from 1390, we get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Advancing to step 10:
If we divide 1020 by 161, we get 6 and a remainder of 54.
Use 6 as the next digit of our solution. 
Result so far: 291794.86
If we subtract 966 from 1020, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 11:
When dividing 540 by 161, we get 3 with a remainder of 57.
The number 3 becomes the next digit in our result. 
Result so far: 291794.863
Deduct 483 from 540 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 12:
161 can be fit into 570 3 times, resulting in a remainder of 87.
Record the quotient 3 as the next digit in the result. 
Result so far: 291794.8633
The remainder is 87 after subtracting 483 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

The quotient of the division is 291794.8633, and the remainder is 0.00087.