19074389 ÷ 161 
The aim is to understand the frequency of 161 in 19074389.

Going ahead to step 1:
If we divide 1 by 161, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 161

Moving on to step 2:
If we divide 19 by 161, we get 0 and a remainder of 19.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 19 leaves us with 19.
Take the next digit (0) from the dividend and append it to 19, then repeat: 190 / 161

On to step 3:
161 can be fit into 190 1 times, resulting in a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 29 after subtracting 161 from 190.
Grab the next digit (7) from the dividend, add it to 29, then carry on: 297 / 161

Moving on to step 4:
If we divide 297 by 161, we get 1 and a remainder of 136.
Write down 1 as next digit of the result. 
Result so far: 11.0
The remainder is 136 after subtracting 161 from 297.
Bring next digit (4) of the dividend behind the 136 and repeat the process: 1364 / 161

Step 5:
When dividing 1364 by 161, we get 8 with a remainder of 76.
The number 8 becomes the next digit in our result. 
Result so far: 118.0
Deduct 1288 from 1364 and we're left with 76.
Append the next digit (3) from the dividend to 76 and continue with: 763 / 161

Advancing to step 6:
If we divide 763 by 161, we get 4 and a remainder of 119.
Record the quotient 4 as the next digit in the result. 
Result so far: 1184.0
Subtract 644 from 763 to get 119.
Fetch the next digit (8) from the dividend, attach it to 119 and continue: 1198 / 161

On to step 7:
When dividing 1198 by 161, we get 7 with a remainder of 71.
The next digit of our result is 7. 
Result so far: 11847.0
If we subtract 1127 from 1198, we get 71.
Bring next digit (9) of the dividend behind the 71 and repeat the process: 719 / 161

Step 8:
The number 161 fits into 719 4 times, leaving a remainder of 75.
The number 4 becomes the next digit in our result. 
Result so far: 118474.0
Deduct 644 from 719 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 9:
When dividing 750 by 161, we get 4 with a remainder of 106.
Use 4 as the next digit of our solution. 
Result so far: 118474.4
The remainder is 106 after subtracting 644 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Moving on to step 10:
161 goes into 1060 6 times with a remainder of 94.
Put 6 as the next digit of the answer. 
Result so far: 118474.46
If we take 966 away from 1060, we end up with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Going ahead to step 11:
161 can be fit into 940 5 times, resulting in a remainder of 135.
The number 5 becomes the next digit in our result. 
Result so far: 118474.465
If we subtract 805 from 940, we get 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Moving on to step 12:
When dividing 1350 by 161, we get 8 with a remainder of 62.
Record the quotient 8 as the next digit in the result. 
Result so far: 118474.4658
If we subtract 1288 from 1350, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 13:
161 goes into 620 3 times with a remainder of 137.
The number 3 becomes the next digit in our result. 
Result so far: 118474.46583
If we subtract 483 from 620, we get 137.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

On to step 14:
1370 divided by 161 is 8 with a remainder of 82.
Write down 8 as next digit of the result. 
Result so far: 118474.465838
If we take 1288 away from 1370, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

On to step 15:
When dividing 820 by 161, we get 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 118474.4658385
Subtract 805 from 820 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 16:
161 goes into 150 0 times with a remainder of 150.
Write down 0 as next digit of the result. 
Result so far: 118474.4658385
If we subtract 0 from 150, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

The final result is 118474.4658385 with a remainder of 1.5e-07.