89973951 ÷ 637 
The aim is to understand the frequency of 637 in 89973951.

Advancing to step 1:
8 divided by 637 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 637

Let's proceed to step 2:
When dividing 89 by 637, we get 0 with a remainder of 89.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 89 after subtracting 0 from 89.
Fetch the next digit (9) from the dividend, attach it to 89 and continue: 899 / 637

Moving on to step 3:
The number 637 fits into 899 1 times, leaving a remainder of 262.
The next digit of our result is 1. 
Result so far: 1.0
If we take 637 away from 899, we end up with 262.
Take the next digit (7) from the dividend and append it to 262, then repeat: 2627 / 637

Advancing to step 4:
If we divide 2627 by 637, we get 4 and a remainder of 79.
Write down 4 as next digit of the result. 
Result so far: 14.0
Subtract 2548 from 2627 to get 79.
Grab the next digit (3) from the dividend, add it to 79, then carry on: 793 / 637

Advancing to step 5:
The number 637 fits into 793 1 times, leaving a remainder of 156.
The number 1 becomes the next digit in our result. 
Result so far: 141.0
If we subtract 637 from 793, we get 156.
Grab the next digit (9) from the dividend, add it to 156, then carry on: 1569 / 637

Moving on to step 6:
637 goes into 1569 2 times with a remainder of 295.
The number 2 becomes the next digit in our result. 
Result so far: 1412.0
If we subtract 1274 from 1569, we get 295.
Fetch the next digit (5) from the dividend, attach it to 295 and continue: 2955 / 637

Going ahead to step 7:
The number 637 fits into 2955 4 times, leaving a remainder of 407.
Use 4 as the next digit of our solution. 
Result so far: 14124.0
Subtract 2548 from 2955 to get 407.
Append the next digit (1) from the dividend to 407 and continue with: 4071 / 637

Going ahead to step 8:
4071 divided by 637 is 6 with a remainder of 249.
Use 6 as the next digit of our solution. 
Result so far: 141246.0
Subtracting 3822 from 4071 leaves us with 249.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2490, and continue the process.

Advancing to step 9:
If we divide 2490 by 637, we get 3 and a remainder of 579.
Write down 3 as next digit of the result. 
Result so far: 141246.3
Deduct 1911 from 2490 and we're left with 579.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5790, and continue the process.

Going ahead to step 10:
637 can be fit into 5790 9 times, resulting in a remainder of 57.
The next digit of our result is 9. 
Result so far: 141246.39
If we subtract 5733 from 5790, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 11:
When dividing 570 by 637, we get 0 with a remainder of 570.
Record the quotient 0 as the next digit in the result. 
Result so far: 141246.39
Deduct 0 from 570 and we're left with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

On to step 12:
The number 637 fits into 5700 8 times, leaving a remainder of 604.
The next digit of our result is 8. 
Result so far: 141246.3908
Subtract 5096 from 5700 to get 604.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

On to step 13:
When dividing 6040 by 637, we get 9 with a remainder of 307.
The number 9 becomes the next digit in our result. 
Result so far: 141246.39089
Deduct 5733 from 6040 and we're left with 307.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3070, and continue the process.

On to step 14:
637 can be fit into 3070 4 times, resulting in a remainder of 522.
The number 4 becomes the next digit in our result. 
Result so far: 141246.390894
If we subtract 2548 from 3070, we get 522.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5220, and continue the process.

Let's proceed to step 15:
The number 637 fits into 5220 8 times, leaving a remainder of 124.
The number 8 becomes the next digit in our result. 
Result so far: 141246.3908948
Deduct 5096 from 5220 and we're left with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Moving on to step 16:
If we divide 1240 by 637, we get 1 and a remainder of 603.
Use 1 as the next digit of our solution. 
Result so far: 141246.39089481
The remainder is 603 after subtracting 637 from 1240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6030, and continue the process.

Our division results in 141246.39089481 with a remaining 6.03e-07.