We look at the division of 12651409 by 161 
We want to figure out the number of times 12651409 can be divided by 161.

Let's proceed to step 1:
1 divided by 161 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 161

Step 2:
The number 161 fits into 12 0 times, leaving a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Bring next digit (6) of the dividend behind the 12 and repeat the process: 126 / 161

Advancing to step 3:
161 can be fit into 126 0 times, resulting in a remainder of 126.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 126 after subtracting 0 from 126.
Fetch the next digit (5) from the dividend, attach it to 126 and continue: 1265 / 161

Moving on to step 4:
The number 161 fits into 1265 7 times, leaving a remainder of 138.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 1127 from 1265, we get 138.
Fetch the next digit (1) from the dividend, attach it to 138 and continue: 1381 / 161

On to step 5:
161 can be fit into 1381 8 times, resulting in a remainder of 93.
The number 8 becomes the next digit in our result. 
Result so far: 78.0
Subtract 1288 from 1381 to get 93.
Take the next digit (4) from the dividend and append it to 93, then repeat: 934 / 161

Step 6:
When dividing 934 by 161, we get 5 with a remainder of 129.
Write down 5 as next digit of the result. 
Result so far: 785.0
If we subtract 805 from 934, we get 129.
Grab the next digit (0) from the dividend, add it to 129, then carry on: 1290 / 161

Let's proceed to step 7:
When dividing 1290 by 161, we get 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 7858.0
Subtract 1288 from 1290 to get 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 161

Step 8:
When dividing 29 by 161, we get 0 with a remainder of 29.
The number 0 becomes the next digit in our result. 
Result so far: 78580.0
Subtract 0 from 29 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 9:
The number 161 fits into 290 1 times, leaving a remainder of 129.
Put 1 as the next digit of the answer. 
Result so far: 78580.1
Deduct 161 from 290 and we're left with 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Step 10:
The number 161 fits into 1290 8 times, leaving a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 78580.18
If we subtract 1288 from 1290, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 11:
161 can be fit into 20 0 times, resulting in a remainder of 20.
The next digit of our result is 0. 
Result so far: 78580.18
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 12:
200 divided by 161 is 1 with a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 78580.1801
Subtract 161 from 200 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 13:
161 goes into 390 2 times with a remainder of 68.
Put 2 as the next digit of the answer. 
Result so far: 78580.18012
Deduct 322 from 390 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 14:
680 divided by 161 is 4 with a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 78580.180124
Deduct 644 from 680 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 15:
When dividing 360 by 161, we get 2 with a remainder of 38.
The number 2 becomes the next digit in our result. 
Result so far: 78580.1801242
If we subtract 322 from 360, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 16:
161 goes into 380 2 times with a remainder of 58.
The next digit of our result is 2. 
Result so far: 78580.18012422
The remainder is 58 after subtracting 322 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

After the division, we end up with 78580.18012422 and a remainder of 5.8e-08.