91208720 ÷ 850 
We're looking to find how many times 850 goes into 91208720.

Going ahead to step 1:
When dividing 9 by 850, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 850

Moving on to step 2:
850 goes into 91 0 times with a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Grab the next digit (2) from the dividend, add it to 91, then carry on: 912 / 850

Advancing to step 3:
If we divide 912 by 850, we get 1 and a remainder of 62.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 62 after subtracting 850 from 912.
Bring next digit (0) of the dividend behind the 62 and repeat the process: 620 / 850

Moving on to step 4:
When dividing 620 by 850, we get 0 with a remainder of 620.
Use 0 as the next digit of our solution. 
Result so far: 10.0
The remainder is 620 after subtracting 0 from 620.
Take the next digit (8) from the dividend and append it to 620, then repeat: 6208 / 850

Let's proceed to step 5:
The number 850 fits into 6208 7 times, leaving a remainder of 258.
Put 7 as the next digit of the answer. 
Result so far: 107.0
If we subtract 5950 from 6208, we get 258.
Append the next digit (7) from the dividend to 258 and continue with: 2587 / 850

Going ahead to step 6:
When dividing 2587 by 850, we get 3 with a remainder of 37.
Put 3 as the next digit of the answer. 
Result so far: 1073.0
If we take 2550 away from 2587, we end up with 37.
Fetch the next digit (2) from the dividend, attach it to 37 and continue: 372 / 850

Going ahead to step 7:
If we divide 372 by 850, we get 0 and a remainder of 372.
Put 0 as the next digit of the answer. 
Result so far: 10730.0
The remainder is 372 after subtracting 0 from 372.
Grab the next digit (0) from the dividend, add it to 372, then carry on: 3720 / 850

Moving on to step 8:
3720 divided by 850 is 4 with a remainder of 320.
Record the quotient 4 as the next digit in the result. 
Result so far: 107304.0
If we subtract 3400 from 3720, we get 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 9:
If we divide 3200 by 850, we get 3 and a remainder of 650.
Put 3 as the next digit of the answer. 
Result so far: 107304.3
Deduct 2550 from 3200 and we're left with 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

Let's proceed to step 10:
The number 850 fits into 6500 7 times, leaving a remainder of 550.
Write down 7 as next digit of the result. 
Result so far: 107304.37
If we take 5950 away from 6500, we end up with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Let's proceed to step 11:
850 can be fit into 5500 6 times, resulting in a remainder of 400.
Use 6 as the next digit of our solution. 
Result so far: 107304.376
Deduct 5100 from 5500 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Let's proceed to step 12:
850 goes into 4000 4 times with a remainder of 600.
Put 4 as the next digit of the answer. 
Result so far: 107304.3764
Subtracting 3400 from 4000 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Moving on to step 13:
6000 divided by 850 is 7 with a remainder of 50.
Use 7 as the next digit of our solution. 
Result so far: 107304.37647
The remainder is 50 after subtracting 5950 from 6000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 14:
When dividing 500 by 850, we get 0 with a remainder of 500.
Use 0 as the next digit of our solution. 
Result so far: 107304.37647
Subtract 0 from 500 to get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Moving on to step 15:
When dividing 5000 by 850, we get 5 with a remainder of 750.
Use 5 as the next digit of our solution. 
Result so far: 107304.3764705
Deduct 4250 from 5000 and we're left with 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Moving on to step 16:
If we divide 7500 by 850, we get 8 and a remainder of 700.
Record the quotient 8 as the next digit in the result. 
Result so far: 107304.37647058
If we subtract 6800 from 7500, we get 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

In conclusion, the division gives 107304.37647058 with a balance of 7e-07.