12120437 ÷ 85 
We want to figure out the number of times 12120437 can be divided by 85.

Step 1:
1 divided by 85 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
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 / 85

Going ahead to step 2:
The number 85 fits into 12 0 times, leaving a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 85

On to step 3:
The number 85 fits into 121 1 times, leaving a remainder of 36.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 85 from 121 leaves us with 36.
Append the next digit (2) from the dividend to 36 and continue with: 362 / 85

Moving on to step 4:
85 can be fit into 362 4 times, resulting in a remainder of 22.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Deduct 340 from 362 and we're left with 22.
Bring next digit (0) of the dividend behind the 22 and repeat the process: 220 / 85

Going ahead to step 5:
85 can be fit into 220 2 times, resulting in a remainder of 50.
Record the quotient 2 as the next digit in the result. 
Result so far: 142.0
Subtracting 170 from 220 leaves us with 50.
Take the next digit (4) from the dividend and append it to 50, then repeat: 504 / 85

Going ahead to step 6:
The number 85 fits into 504 5 times, leaving a remainder of 79.
The next digit of our result is 5. 
Result so far: 1425.0
Deduct 425 from 504 and we're left with 79.
Grab the next digit (3) from the dividend, add it to 79, then carry on: 793 / 85

Let's proceed to step 7:
85 can be fit into 793 9 times, resulting in a remainder of 28.
Record the quotient 9 as the next digit in the result. 
Result so far: 14259.0
If we take 765 away from 793, we end up with 28.
Grab the next digit (7) from the dividend, add it to 28, then carry on: 287 / 85

On to step 8:
85 goes into 287 3 times with a remainder of 32.
Write down 3 as next digit of the result. 
Result so far: 142593.0
If we subtract 255 from 287, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 9:
When dividing 320 by 85, we get 3 with a remainder of 65.
The number 3 becomes the next digit in our result. 
Result so far: 142593.3
The remainder is 65 after subtracting 255 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 10:
When dividing 650 by 85, we get 7 with a remainder of 55.
Write down 7 as next digit of the result. 
Result so far: 142593.37
The remainder is 55 after subtracting 595 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Let's proceed to step 11:
The number 85 fits into 550 6 times, leaving a remainder of 40.
The number 6 becomes the next digit in our result. 
Result so far: 142593.376
If we take 510 away from 550, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 12:
The number 85 fits into 400 4 times, leaving a remainder of 60.
Record the quotient 4 as the next digit in the result. 
Result so far: 142593.3764
If we take 340 away from 400, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 13:
If we divide 600 by 85, we get 7 and a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 142593.37647
Subtracting 595 from 600 leaves us 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.

Going ahead to step 14:
If we divide 50 by 85, we get 0 and a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 142593.37647
Subtracting 0 from 50 leaves us 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.

Let's proceed to step 15:
When dividing 500 by 85, we get 5 with a remainder of 75.
The number 5 becomes the next digit in our result. 
Result so far: 142593.3764705
Subtract 425 from 500 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 16:
750 divided by 85 is 8 with a remainder of 70.
Put 8 as the next digit of the answer. 
Result so far: 142593.37647058
Subtracting 680 from 750 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final outcome is 142593.37647058, with a leftover of 7e-08.