We divide 72789430 by 161
We want to figure out the number of times 72789430 can be divided by 161.

Step 1:
The number 161 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 161

Advancing to step 2:
If we divide 72 by 161, we get 0 and a remainder of 72.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 72 leaves us with 72.
Take the next digit (7) from the dividend and append it to 72, then repeat: 727 / 161

Moving on to step 3:
When dividing 727 by 161, we get 4 with a remainder of 83.
The next digit of our result is 4. 
Result so far: 4.0
The remainder is 83 after subtracting 644 from 727.
Include the next digit (8) from the dividend after 83, then repeat: 838 / 161

Let's proceed to step 4:
If we divide 838 by 161, we get 5 and a remainder of 33.
Use 5 as the next digit of our solution. 
Result so far: 45.0
Deduct 805 from 838 and we're left with 33.
Append the next digit (9) from the dividend to 33 and continue with: 339 / 161

Moving on to step 5:
161 can be fit into 339 2 times, resulting in a remainder of 17.
Write down 2 as next digit of the result. 
Result so far: 452.0
The remainder is 17 after subtracting 322 from 339.
Include the next digit (4) from the dividend after 17, then repeat: 174 / 161

Advancing to step 6:
174 divided by 161 is 1 with a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 4521.0
If we take 161 away from 174, we end up with 13.
Take the next digit (3) from the dividend and append it to 13, then repeat: 133 / 161

Advancing to step 7:
When dividing 133 by 161, we get 0 with a remainder of 133.
The next digit of our result is 0. 
Result so far: 45210.0
If we subtract 0 from 133, we get 133.
Take the next digit (0) from the dividend and append it to 133, then repeat: 1330 / 161

Going ahead to step 8:
The number 161 fits into 1330 8 times, leaving a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 452108.0
If we subtract 1288 from 1330, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 9:
161 goes into 420 2 times with a remainder of 98.
Record the quotient 2 as the next digit in the result. 
Result so far: 452108.2
Subtracting 322 from 420 leaves us with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Moving on to step 10:
980 divided by 161 is 6 with a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 452108.26
Subtract 966 from 980 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 11:
140 divided by 161 is 0 with a remainder of 140.
Use 0 as the next digit of our solution. 
Result so far: 452108.26
Subtract 0 from 140 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 12:
161 goes into 1400 8 times with a remainder of 112.
The number 8 becomes the next digit in our result. 
Result so far: 452108.2608
If we take 1288 away from 1400, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 13:
161 goes into 1120 6 times with a remainder of 154.
Put 6 as the next digit of the answer. 
Result so far: 452108.26086
If we take 966 away from 1120, we end up with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Step 14:
When dividing 1540 by 161, we get 9 with a remainder of 91.
Use 9 as the next digit of our solution. 
Result so far: 452108.260869
Subtract 1449 from 1540 to get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Advancing to step 15:
If we divide 910 by 161, we get 5 and a remainder of 105.
Use 5 as the next digit of our solution. 
Result so far: 452108.2608695
Deduct 805 from 910 and we're left with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Advancing to step 16:
1050 divided by 161 is 6 with a remainder of 84.
Use 6 as the next digit of our solution. 
Result so far: 452108.26086956
The remainder is 84 after subtracting 966 from 1050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

In conclusion, the division gives 452108.26086956 with a balance of 8.4e-08.