We're dividing 87639110 by 977 
We want to figure out the number of times 87639110 can be divided by 977.

On to step 1:
977 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 977

Going ahead to step 2:
977 goes into 87 0 times with a remainder of 87.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 87 leaves us with 87.
Take the next digit (6) from the dividend and append it to 87, then repeat: 876 / 977

Let's proceed to step 3:
977 can be fit into 876 0 times, resulting in a remainder of 876.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 876, we end up with 876.
Bring next digit (3) of the dividend behind the 876 and repeat the process: 8763 / 977

Step 4:
When dividing 8763 by 977, we get 8 with a remainder of 947.
The next digit of our result is 8. 
Result so far: 8.0
Deduct 7816 from 8763 and we're left with 947.
Fetch the next digit (9) from the dividend, attach it to 947 and continue: 9479 / 977

Going ahead to step 5:
If we divide 9479 by 977, we get 9 and a remainder of 686.
Put 9 as the next digit of the answer. 
Result so far: 89.0
Deduct 8793 from 9479 and we're left with 686.
Take the next digit (1) from the dividend and append it to 686, then repeat: 6861 / 977

Let's proceed to step 6:
977 goes into 6861 7 times with a remainder of 22.
Put 7 as the next digit of the answer. 
Result so far: 897.0
Subtract 6839 from 6861 to get 22.
Fetch the next digit (1) from the dividend, attach it to 22 and continue: 221 / 977

Advancing to step 7:
977 goes into 221 0 times with a remainder of 221.
The number 0 becomes the next digit in our result. 
Result so far: 8970.0
If we subtract 0 from 221, we get 221.
Include the next digit (0) from the dividend after 221, then repeat: 2210 / 977

Moving on to step 8:
When dividing 2210 by 977, we get 2 with a remainder of 256.
Use 2 as the next digit of our solution. 
Result so far: 89702.0
If we take 1954 away from 2210, we end up with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Going ahead to step 9:
If we divide 2560 by 977, we get 2 and a remainder of 606.
Write down 2 as next digit of the result. 
Result so far: 89702.2
Subtract 1954 from 2560 to get 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Step 10:
If we divide 6060 by 977, we get 6 and a remainder of 198.
The next digit of our result is 6. 
Result so far: 89702.26
Subtract 5862 from 6060 to get 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Going ahead to step 11:
When dividing 1980 by 977, we get 2 with a remainder of 26.
Put 2 as the next digit of the answer. 
Result so far: 89702.262
If we subtract 1954 from 1980, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 12:
The number 977 fits into 260 0 times, leaving a remainder of 260.
The next digit of our result is 0. 
Result so far: 89702.262
Deduct 0 from 260 and we're left with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 13:
When dividing 2600 by 977, we get 2 with a remainder of 646.
Use 2 as the next digit of our solution. 
Result so far: 89702.26202
If we subtract 1954 from 2600, we get 646.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6460, and continue the process.

Advancing to step 14:
If we divide 6460 by 977, we get 6 and a remainder of 598.
Record the quotient 6 as the next digit in the result. 
Result so far: 89702.262026
Subtract 5862 from 6460 to get 598.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5980, and continue the process.

Advancing to step 15:
The number 977 fits into 5980 6 times, leaving a remainder of 118.
Record the quotient 6 as the next digit in the result. 
Result so far: 89702.2620266
Subtracting 5862 from 5980 leaves us with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

In conclusion, the division gives 89702.2620266 with a balance of 1.18e-06.