Let's divide 12586770 by 355
Our goal is to divide 12586770 by 355.

Going ahead to step 1:
When dividing 1 by 355, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 355

Going ahead to step 2:
355 can be fit into 12 0 times, resulting in a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Include the next digit (5) from the dividend after 12, then repeat: 125 / 355

Step 3:
125 divided by 355 is 0 with a remainder of 125.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 125 to get 125.
Fetch the next digit (8) from the dividend, attach it to 125 and continue: 1258 / 355

Advancing to step 4:
When dividing 1258 by 355, we get 3 with a remainder of 193.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 1065 from 1258 and we're left with 193.
Append the next digit (6) from the dividend to 193 and continue with: 1936 / 355

Step 5:
355 goes into 1936 5 times with a remainder of 161.
Put 5 as the next digit of the answer. 
Result so far: 35.0
The remainder is 161 after subtracting 1775 from 1936.
Bring next digit (7) of the dividend behind the 161 and repeat the process: 1617 / 355

Let's proceed to step 6:
355 goes into 1617 4 times with a remainder of 197.
Put 4 as the next digit of the answer. 
Result so far: 354.0
If we take 1420 away from 1617, we end up with 197.
Grab the next digit (7) from the dividend, add it to 197, then carry on: 1977 / 355

Advancing to step 7:
1977 divided by 355 is 5 with a remainder of 202.
The number 5 becomes the next digit in our result. 
Result so far: 3545.0
Subtract 1775 from 1977 to get 202.
Include the next digit (0) from the dividend after 202, then repeat: 2020 / 355

Let's proceed to step 8:
2020 divided by 355 is 5 with a remainder of 245.
Write down 5 as next digit of the result. 
Result so far: 35455.0
The remainder is 245 after subtracting 1775 from 2020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Going ahead to step 9:
2450 divided by 355 is 6 with a remainder of 320.
Put 6 as the next digit of the answer. 
Result so far: 35455.6
If we take 2130 away from 2450, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 10:
355 can be fit into 3200 9 times, resulting in a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 35455.69
Deduct 3195 from 3200 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 11:
355 goes into 50 0 times with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 35455.69
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 12:
If we divide 500 by 355, we get 1 and a remainder of 145.
The next digit of our result is 1. 
Result so far: 35455.6901
Subtract 355 from 500 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Let's proceed to step 13:
When dividing 1450 by 355, we get 4 with a remainder of 30.
Put 4 as the next digit of the answer. 
Result so far: 35455.69014
If we subtract 1420 from 1450, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 14:
If we divide 300 by 355, we get 0 and a remainder of 300.
Put 0 as the next digit of the answer. 
Result so far: 35455.69014
The remainder is 300 after subtracting 0 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Step 15:
355 goes into 3000 8 times with a remainder of 160.
Write down 8 as next digit of the result. 
Result so far: 35455.6901408
If we subtract 2840 from 3000, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 16:
The number 355 fits into 1600 4 times, leaving a remainder of 180.
Use 4 as the next digit of our solution. 
Result so far: 35455.69014084
If we take 1420 away from 1600, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

In conclusion, the division gives 35455.69014084 with a balance of 1.8e-07.